Surprised by OTC Reading Glasses

#23 09-05-2007, 08:32 PM

On Sep 4, 10:32 pm, "Mark A" <nob...[at]nowhere.com> wrote:
- quote -

> "lena102938" <db00q...[at]yahoo.com> wrote in message
> news:1188954211.033250.321470[at]o80g2000hse.googlegroups.com...
> > About quality of chain-opticsglasses, LensCrafters
> > In particular
> > Read posts "Polycarbonate versus High Index Plastic (1.67) lens help!"
> > It states that even wall mart better (and much cheaper)
> Since I posted that, I want to clarify. Lenscrafters will almost always sell
> mediocre quality lenses that are available in stock and can be ready in
> about an hour. Generally speaking, it is very hard to figure out which brand
> and model lens you are actually getting, because they are private-label
> lenses with Lenscrafters names like Featherwate, etc. They can special order
> "some" higher quality name brand lenses (if you talk to the head optician)
> but they are usually very expensive.
> Wal-Mart optical does not finish lenses in the store, they send them to a
> lab to finish (sort of like an independent optical shop, except it is a
> Wal-Mart owned lab). That means you will have to wait about a week or 10
> days for yourglasses. Wal-Mart sells some mediocre lenses and some very
> good lenses at different price points, but they do not have the full range
> of lenses that are available at most independent optical shops (or OD
> office) who can use one or more independent labs to get what they need
> (however some independent opticals tend to use one lab and favor a
> particular brand of lens unless you browbeat them)..
> Wal-Mart will usually tell you the exact brand name and model of lens they
> have available (talk to the "head optician" if the optician in the store
> does not know). Lenscrafters will almost always push polycarb on you, which
> is about the worst lens material available from an optical standpoint,
> especially if you have a strong Rx. But polycarb is very profitable for them
> and it is a safety lens (which admittedly is suggested for children and an
> advantage when using drill mount lenses on a rimless frame). But Trivex is a
> much better safety lens available from Hoya.

Mark,

If I wanted to get the High Index (1.67) Plastic lenses from
lenscrafters they will have to be ordered and will take a little over
2 weeks to come in, followed by a "1 hour" fit-to-frame time. So
it's similar to what you said about Wal-mart sending them out.

Before I return my "the right fit" of Polycarbonate glasses to LC, I
want to make sure I get quotes from a local place and possibly Wal-
mart, they can't be much worse than LC as far as lens quality goes.

Thanks for your advice in my post - "Polycarbonate versus High Index
Plastic (1.67) lens help!"

Kevin

#22 09-05-2007, 08:29 PM

On Sep 5, 12:43 am, lena102938 <db00q...[at]yahoo.com> wrote:
- quote -

> On Sep 4, 9:32 pm, "Mark A" <nob...[at]nowhere.com> wrote:
> > "lena102938" <db00q...[at]yahoo.com> wrote in message
> > news:1188954211.033250.321470[at]o80g2000hse.googlegroups.com...
> > > About quality of chain-opticsglasses, LensCrafters
> > > In particular
> > > Read posts "Polycarbonate versus High Index Plastic (1.67) lens help!"
> > > It states that even wall mart better (and much cheaper)
> > Since I posted that, I want to clarify. Lenscrafters will almost always sell
> > mediocre quality lenses that are available in stock and can be ready in
> > about an hour. Generally speaking, it is very hard to figure out which brand
> > and model lens you are actually getting, because they are private-label
> > lenses with Lenscrafters names like Featherwate, etc. They can special order
> > "some" higher quality name brand lenses (if you talk to the head optician)
> > but they are usually very expensive.
> > Wal-Mart optical does not finish lenses in the store, they send them to a
> > lab to finish (sort of like an independent optical shop, except it is a
> > Wal-Mart owned lab). That means you will have to wait about a week or 10
> > days for yourglasses. Wal-Mart sells some mediocre lenses and some very
> > good lenses at different price points, but they do not have the full range
> > of lenses that are available at most independent optical shops (or OD
> > office) who can use one or more independent labs to get what they need
> > (however some independent opticals tend to use one lab and favor a
> > particular brand of lens unless you browbeat them)..
> > Wal-Mart will usually tell you the exact brand name and model of lens they
> > have available (talk to the "head optician" if the optician in the store
> > does not know). Lenscrafters will almost always push polycarb on you, which
> > is about the worst lens material available from an optical standpoint,
> > especially if you have a strong Rx. But polycarb is very profitable for them
> > and it is a safety lens (which admittedly is suggested for children and an
> > advantage when using drill mount lenses on a rimless frame). But Trivex is a
> > much better safety lens available from Hoya.
> Mark,
> Thank you for response.
> I've never was shopping forglassesfor myself.
> It is for my friend.
> LensCrafters and PerlVision look
> (at our mall ) kind of nice stories.
> I was sure that they should sell superior quality lenses.
> I was wrong, kind of.
> It was surprise for me when somewhere in previous posts
> I found discussion about chain stories.
> Experiment confirmed discussion:
> I asked Pearl Vision , what brand they sell
> answer was "Pearl Vision"
> In LensCrafters, answer was "LensCrafters"
> I am not a fan of not-a brand (as a rule
> quality is very poor) or Wall Mart.
> Independent optician which my friend
> was visiting never mention lenses brands also.
> (Waiting never was a problem, he has +
> and can use readers from the shelf for a while.)
> What is the best ? You posted Zeis and Hoya ?
> Lena- Hide quoted text -
> - Show quoted text -

Lena,

I didn't know this until a couple of weeks ago but Pearle,
Lenscrafters, Sears Optical, Target Optical and BJ/JB? Optical are all
owned by the same people -> Lenscrafters Retail.

Most people think they're competing with each other, which just means
that marketing strategy is working. I actually initially shopped at
Pearle, Sears and Lenscrafters until I found out about them all being
owned by the same parent.

Kevin

#21 09-05-2007, 05:35 AM

"lena102938" <db00qp00[at]yahoo.com> wrote in message
news:1188967392.873633.254170[at]w3g2000hsg.googlegroups.com...
- quote -

> Mark,
> Thank you for response.
> I've never was shopping for glasses for myself.
> It is for my friend.
> LensCrafters and PerlVision look
> (at our mall ) kind of nice stories.
> I was sure that they should sell superior quality lenses.
> I was wrong, kind of.
> It was surprise for me when somewhere in previous posts
> I found discussion about chain stories.
> Experiment confirmed discussion:
> I asked Pearl Vision , what brand they sell
> answer was "Pearl Vision"
> In LensCrafters, answer was "LensCrafters"
> I am not a fan of not-a brand (as a rule
> quality is very poor) or Wall Mart.
> Independent optician which my friend
> was visiting never mention lenses brands also.
> (Waiting never was a problem, he has +
> and can use readers from the shelf for a while.)
> What is the best ? You posted Zeis and Hoya ?
> Lena

I have found that Wal-Mart will tell you the name of the manufacturer and
model of lenses they sell if you ask. You may have to ask the head optician.
If you go to Wal-mart optical, you will see brand name lenses advertised on
flyers such as Nikon (which is a brand name that is actually licensed by
Essilor in the USA from Nikon in Japan). Once I even called the head buyer
of optical products at Wal-Mart corporate headquarters in Bentonville and he
was very open about who makes their products.

Both Hoya and Zeiss are considered high-end lens manufacturers (among
several others), but some models and materials are better than others even
in their own product line. But there is no best lens for everyone. For
example, an aspheric lens design is more sophisticated and more expensive
than a spherical lens design, but if you don't need an aspherical lens (say
if your Rx is relatively weak) then you are sacrificing good vision and
paying too much for something that is not the correct product for you.

The same holds true for the lens material. A high index lens costs more, and
is more atheistically pleasing because it is thinner, but it has worse
optics than a lower index lens, which might be thin enough for a person with
a lower power Rx.

#20 09-05-2007, 05:16 AM

In article <4lsaoi7zvw27$.u628xiv18adr$.dlg[at]40tude.net> ,
Father Mike <fmike[at]thevat.invalid> wrote:

- quote -

> > On Aug 29, 5:53 pm, Father Mike <fm...[at]thevat.com> wrote:
> > > Well, I was thinking I'd cheat Pearle Vision and buy OTC reading glasses.
> > > Finally I located OTC readers with the required +2.50 correction. To my
> > > surprise, they were totally useless. I tried strengths above and below, but
> > > nothing worked.

> prescription sunglasses from many years ago and they are like Coke bottles,
> because they're glass. The surprising thing is I can still use them, except
> they are so heavy and I don't much care for the tint.

Clue number two: people with Coke bottle glasses don't use +2.50. Stop
trying to cheat the doctor, and give them a call. My doctors will call
me or Email me and give me some numbers.

#19 09-05-2007, 04:43 AM

On Sep 4, 9:32 pm, "Mark A" <nob...[at]nowhere.com> wrote:
- quote -

> "lena102938" <db00q...[at]yahoo.com> wrote in message
> news:1188954211.033250.321470[at]o80g2000hse.googlegroups.com...
> > About quality of chain-optics glasses, LensCrafters
> > In particular
> > Read posts "Polycarbonate versus High Index Plastic (1.67) lens help!"
> > It states that even wall mart better (and much cheaper)
> Since I posted that, I want to clarify. Lenscrafters will almost always sell
> mediocre quality lenses that are available in stock and can be ready in
> about an hour. Generally speaking, it is very hard to figure out which brand
> and model lens you are actually getting, because they are private-label
> lenses with Lenscrafters names like Featherwate, etc. They can special order
> "some" higher quality name brand lenses (if you talk to the head optician)
> but they are usually very expensive.
> Wal-Mart optical does not finish lenses in the store, they send them to a
> lab to finish (sort of like an independent optical shop, except it is a
> Wal-Mart owned lab). That means you will have to wait about a week or 10
> days for your glasses. Wal-Mart sells some mediocre lenses and some very
> good lenses at different price points, but they do not have the full range
> of lenses that are available at most independent optical shops (or OD
> office) who can use one or more independent labs to get what they need
> (however some independent opticals tend to use one lab and favor a
> particular brand of lens unless you browbeat them)..
> Wal-Mart will usually tell you the exact brand name and model of lens they
> have available (talk to the "head optician" if the optician in the store
> does not know). Lenscrafters will almost always push polycarb on you, which
> is about the worst lens material available from an optical standpoint,
> especially if you have a strong Rx. But polycarb is very profitable for them
> and it is a safety lens (which admittedly is suggested for children and an
> advantage when using drill mount lenses on a rimless frame). But Trivex is a
> much better safety lens available from Hoya.

Mark,
Thank you for response.
I've never was shopping for glasses for myself.
It is for my friend.
LensCrafters and PerlVision look
(at our mall ) kind of nice stories.
I was sure that they should sell superior quality lenses.
I was wrong, kind of.
It was surprise for me when somewhere in previous posts
I found discussion about chain stories.
Experiment confirmed discussion:
I asked Pearl Vision , what brand they sell
answer was "Pearl Vision"
In LensCrafters, answer was "LensCrafters"
I am not a fan of not-a brand (as a rule
quality is very poor) or Wall Mart.
Independent optician which my friend
was visiting never mention lenses brands also.
(Waiting never was a problem, he has +
and can use readers from the shelf for a while.)
What is the best ? You posted Zeis and Hoya ?
Lena

#18 09-05-2007, 02:32 AM

"lena102938" <db00qp00[at]yahoo.com> wrote in message
news:1188954211.033250.321470[at]o80g2000hse.googlegroups.com...
- quote -

> About quality of chain-optics glasses, LensCrafters
> In particular
> Read posts "Polycarbonate versus High Index Plastic (1.67) lens help!"
> It states that even wall mart better (and much cheaper)

Since I posted that, I want to clarify. Lenscrafters will almost always sell
mediocre quality lenses that are available in stock and can be ready in
about an hour. Generally speaking, it is very hard to figure out which brand
and model lens you are actually getting, because they are private-label
lenses with Lenscrafters names like Featherwate, etc. They can special order
"some" higher quality name brand lenses (if you talk to the head optician)
but they are usually very expensive.

Wal-Mart optical does not finish lenses in the store, they send them to a
lab to finish (sort of like an independent optical shop, except it is a
Wal-Mart owned lab). That means you will have to wait about a week or 10
days for your glasses. Wal-Mart sells some mediocre lenses and some very
good lenses at different price points, but they do not have the full range
of lenses that are available at most independent optical shops (or OD
office) who can use one or more independent labs to get what they need
(however some independent opticals tend to use one lab and favor a
particular brand of lens unless you browbeat them)..

Wal-Mart will usually tell you the exact brand name and model of lens they
have available (talk to the "head optician" if the optician in the store
does not know). Lenscrafters will almost always push polycarb on you, which
is about the worst lens material available from an optical standpoint,
especially if you have a strong Rx. But polycarb is very profitable for them
and it is a safety lens (which admittedly is suggested for children and an
advantage when using drill mount lenses on a rimless frame). But Trivex is a
much better safety lens available from Hoya.

#17 09-05-2007, 01:33 AM

On Sep 4, 6:03 pm, lena102938 <db00q...[at]yahoo.com> wrote:
- quote -

> On Sep 4, 4:45 pm, Neil Brooks <neil0...[at]yahoo.com> wrote:
> > X-No-Archive: Yes
> > On Sep 4, 2:11 pm, lena102938 <db00q...[at]yahoo.com> wrote:
> > > On Sep 4, 3:37 pm, Neil Brooks <neil0...[at]yahoo.com> wrote:
> > > > X-No-Archive: Yes
> > > > On Sep 4, 1:32 pm, lena102938 <db00q...[at]yahoo.com> wrote:
> > > > > On Sep 4, 3:29 pm, lena102938 <db00q...[at]yahoo.com> wrote:
> > > > > > On Sep 4, 1:09 pm, Father Mike <fm...[at]thevat.com> wrote:
> > > > > > > On Sun, 02 Sep 2007 22:59:00 -0400, Mike Ruskai wrote:
> > > > > > > > Even if you could find such OTC glasses, they probably wouldn't work
> > > > > > > > too well. You have 2+ diopters of astigmatism to deal with as well,
> > > > > > > > so no spherical lens is going to look sharp.
> > > > > > > > Beyond that, if you don't like progressives, why not bi-focals? Or do
> > > > > > > > you need more than two levels of correction?
> > > > > > > I thought about bi-focals when I got my latest pair of progressives a
> > > > > > > couple of months ago. If only they could mock up a pair of bifocals and I
> > > > > > > could try them to see if they agree with me. We're supposed to get a new
> > > > > > > prescription every two years, in my case I stretch it out longer than that.
> > > > > > > My last pair of progressives cost $500 with discounts. I'd hate to spend a
> > > > > > > pile of money on bifocals and find I can't live with them. That's the
> > > > > > > trouble with all glasses, unfortunately.
> > > > > > > I don't think I need more than two levels of correction. Progressives are
> > > > > > > good for every day wear for a variety of tasks, but for me concentrated
> > > > > > > tasks like computer or extended reading, I find they are a PITA.
> > > > > > > Thanks for the response.
> > > > > > Because for reading you should use "down glaze" in progressives
> > > > Huh??
> > > > > > You can order to try in JC Penney Optics They have special offers
> > > > > > sometimes like
> > > > > > two for 129$.
> > > > > I am not shure that quality will be the same
> > > > > But probably all retailers make everything in China now
> > > > Lots of these chains seem to make the lenses right on premises, so ...
> > > > I'm just going to chalk that one up to yet another false
> > > > generalization, but ... so long as you're happy .....
> > > Us I understand they cut/olish back surface on premises, but they do
> > > not
> > > mold the plastic or I am wrong ?
> > > Also, as I understand the equipment to produce realy high
> > > quality optics is very expensive. Do not think
> > > that they can afford it on premises. They have "moderate" quality.
> > > Also chains use their own "generic" brands of lenses,
> > > Which highly increases their profit from the sales.
> > > What they produce it is lense comparable with quality of plastic
> > > lenses for
> > > moderate price camera .
> > > It is far from quality of optics for 5000$-10000$ Nikon.
> > Hm. Gee. I don't think that's what you said.
> > If I were in the mood, I'd check THOSE assertions, too. Based on your
> > recent track record, you're most likely ... um ... in error. Maybe
> > somebody else will weigh in.
> About quality of chain-optics glasses, LensCrafters
> In particular
> Read posts "Polycarbonate versus High Index Plastic (1.67) lens help!"
> It states that even wall mart better (and much cheaper)

Thanks. You're going a long way toward disproving your last point.

As I said before: all we have to do is hand you or Otis a
(metaphorical) gun and you'll both shoot yourselves in the foot.

Happy to help.....

#16 09-05-2007, 01:03 AM

On Sep 4, 4:45 pm, Neil Brooks <neil0...[at]yahoo.com> wrote:
- quote -

> X-No-Archive: Yes
> On Sep 4, 2:11 pm, lena102938 <db00q...[at]yahoo.com> wrote:
> > On Sep 4, 3:37 pm, Neil Brooks <neil0...[at]yahoo.com> wrote:
> > > X-No-Archive: Yes
> > > On Sep 4, 1:32 pm, lena102938 <db00q...[at]yahoo.com> wrote:
> > > > On Sep 4, 3:29 pm, lena102938 <db00q...[at]yahoo.com> wrote:
> > > > > On Sep 4, 1:09 pm, Father Mike <fm...[at]thevat.com> wrote:
> > > > > > On Sun, 02 Sep 2007 22:59:00 -0400, Mike Ruskai wrote:
> > > > > > > Even if you could find such OTC glasses, they probably wouldn't work
> > > > > > > too well. You have 2+ diopters of astigmatism to deal with as well,
> > > > > > > so no spherical lens is going to look sharp.
> > > > > > > Beyond that, if you don't like progressives, why not bi-focals? Or do
> > > > > > > you need more than two levels of correction?
> > > > > > I thought about bi-focals when I got my latest pair of progressives a
> > > > > > couple of months ago. If only they could mock up a pair of bifocals and I
> > > > > > could try them to see if they agree with me. We're supposed to get a new
> > > > > > prescription every two years, in my case I stretch it out longer than that.
> > > > > > My last pair of progressives cost $500 with discounts. I'd hate to spend a
> > > > > > pile of money on bifocals and find I can't live with them. That's the
> > > > > > trouble with all glasses, unfortunately.
> > > > > > I don't think I need more than two levels of correction. Progressives are
> > > > > > good for every day wear for a variety of tasks, but for me concentrated
> > > > > > tasks like computer or extended reading, I find they are a PITA.
> > > > > > Thanks for the response.
> > > > > Because for reading you should use "down glaze" in progressives
> > > Huh??
> > > > > You can order to try in JC Penney Optics They have special offers
> > > > > sometimes like
> > > > > two for 129$.
> > > > I am not shure that quality will be the same
> > > > But probably all retailers make everything in China now
> > > Lots of these chains seem to make the lenses right on premises, so ...
> > > I'm just going to chalk that one up to yet another false
> > > generalization, but ... so long as you're happy .....
> > Us I understand they cut/olish back surface on premises, but they do
> > not
> > mold the plastic or I am wrong ?
> > Also, as I understand the equipment to produce realy high
> > quality optics is very expensive. Do not think
> > that they can afford it on premises. They have "moderate" quality.
> > Also chains use their own "generic" brands of lenses,
> > Which highly increases their profit from the sales.
> > What they produce it is lense comparable with quality of plastic
> > lenses for
> > moderate price camera .
> > It is far from quality of optics for 5000$-10000$ Nikon.
> Hm. Gee. I don't think that's what you said.
> If I were in the mood, I'd check THOSE assertions, too. Based on your
> recent track record, you're most likely ... um ... in error. Maybe
> somebody else will weigh in.

About quality of chain-optics glasses, LensCrafters
In particular
Read posts "Polycarbonate versus High Index Plastic (1.67) lens help!"

It states that even wall mart better (and much cheaper)

#15 09-04-2007, 09:45 PM

X-No-Archive: Yes
On Sep 4, 2:11 pm, lena102938 <db00q...[at]yahoo.com> wrote:
- quote -

> On Sep 4, 3:37 pm, Neil Brooks <neil0...[at]yahoo.com> wrote:
> > X-No-Archive: Yes
> > On Sep 4, 1:32 pm, lena102938 <db00q...[at]yahoo.com> wrote:
> > > On Sep 4, 3:29 pm, lena102938 <db00q...[at]yahoo.com> wrote:
> > > > On Sep 4, 1:09 pm, Father Mike <fm...[at]thevat.com> wrote:
> > > > > On Sun, 02 Sep 2007 22:59:00 -0400, Mike Ruskai wrote:
> > > > > > Even if you could find such OTC glasses, they probably wouldn't work
> > > > > > too well. You have 2+ diopters of astigmatism to deal with as well,
> > > > > > so no spherical lens is going to look sharp.
> > > > > > Beyond that, if you don't like progressives, why not bi-focals? Or do
> > > > > > you need more than two levels of correction?
> > > > > I thought about bi-focals when I got my latest pair of progressives a
> > > > > couple of months ago. If only they could mock up a pair of bifocals and I
> > > > > could try them to see if they agree with me. We're supposed to get a new
> > > > > prescription every two years, in my case I stretch it out longer than that.
> > > > > My last pair of progressives cost $500 with discounts. I'd hate to spend a
> > > > > pile of money on bifocals and find I can't live with them. That's the
> > > > > trouble with all glasses, unfortunately.
> > > > > I don't think I need more than two levels of correction. Progressives are
> > > > > good for every day wear for a variety of tasks, but for me concentrated
> > > > > tasks like computer or extended reading, I find they are a PITA.
> > > > > Thanks for the response.
> > > > Because for reading you should use "down glaze" in progressives
> > Huh??
> > > > You can order to try in JC Penney Optics They have special offers
> > > > sometimes like
> > > > two for 129$.
> > > I am not shure that quality will be the same
> > > But probably all retailers make everything in China now
> > Lots of these chains seem to make the lenses right on premises, so ...
> > I'm just going to chalk that one up to yet another false
> > generalization, but ... so long as you're happy .....
> Us I understand they cut/olish back surface on premises, but they do
> not
> mold the plastic or I am wrong ?
> Also, as I understand the equipment to produce realy high
> quality optics is very expensive. Do not think
> that they can afford it on premises. They have "moderate" quality.
> Also chains use their own "generic" brands of lenses,
> Which highly increases their profit from the sales.
> What they produce it is lense comparable with quality of plastic
> lenses for
> moderate price camera .
> It is far from quality of optics for 5000$-10000$ Nikon.

Hm. Gee. I don't think that's what you said.

If I were in the mood, I'd check THOSE assertions, too. Based on your
recent track record, you're most likely ... um ... in error. Maybe
somebody else will weigh in.

#14 09-04-2007, 09:11 PM

On Sep 4, 3:37 pm, Neil Brooks <neil0...[at]yahoo.com> wrote:
- quote -

> X-No-Archive: Yes
> On Sep 4, 1:32 pm, lena102938 <db00q...[at]yahoo.com> wrote:
> > On Sep 4, 3:29 pm, lena102938 <db00q...[at]yahoo.com> wrote:
> > > On Sep 4, 1:09 pm, Father Mike <fm...[at]thevat.com> wrote:
> > > > On Sun, 02 Sep 2007 22:59:00 -0400, Mike Ruskai wrote:
> > > > > Even if you could find such OTC glasses, they probably wouldn't work
> > > > > too well. You have 2+ diopters of astigmatism to deal with as well,
> > > > > so no spherical lens is going to look sharp.
> > > > > Beyond that, if you don't like progressives, why not bi-focals? Or do
> > > > > you need more than two levels of correction?
> > > > I thought about bi-focals when I got my latest pair of progressives a
> > > > couple of months ago. If only they could mock up a pair of bifocals and I
> > > > could try them to see if they agree with me. We're supposed to get a new
> > > > prescription every two years, in my case I stretch it out longer than that.
> > > > My last pair of progressives cost $500 with discounts. I'd hate to spend a
> > > > pile of money on bifocals and find I can't live with them. That's the
> > > > trouble with all glasses, unfortunately.
> > > > I don't think I need more than two levels of correction. Progressives are
> > > > good for every day wear for a variety of tasks, but for me concentrated
> > > > tasks like computer or extended reading, I find they are a PITA.
> > > > Thanks for the response.
> > > Because for reading you should use "down glaze" in progressives
> Huh??
> > > You can order to try in JC Penney Optics They have special offers
> > > sometimes like
> > > two for 129$.
> > I am not shure that quality will be the same
> > But probably all retailers make everything in China now
> Lots of these chains seem to make the lenses right on premises, so ...
> I'm just going to chalk that one up to yet another false
> generalization, but ... so long as you're happy .....

Us I understand they cut/olish back surface on premises, but they do
not
mold the plastic or I am wrong ?

Also, as I understand the equipment to produce realy high
quality optics is very expensive. Do not think
that they can afford it on premises. They have "moderate" quality.
Also chains use their own "generic" brands of lenses,
Which highly increases their profit from the sales.
What they produce it is lense comparable with quality of plastic
lenses for
moderate price camera .
It is far from quality of optics for 5000$-10000$ Nikon.

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