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Thread started 25 Sep 2007 (Tuesday) 15:47
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Qestion for those that wear glasses with progressive lenses or bifocals

 
tsfall
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Sep 27, 2007 13:28 |  #46

NickR,

I'm not really quite sure what you mean, I'm probably being dumb its just been a long day lol!

Tom


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Nick_C
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Sep 27, 2007 13:29 |  #47

Poor Tom, first a Nick_C giving his brains a workout, now a NickR  :p




  
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NickR
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Sep 27, 2007 13:38 |  #48

tsfall wrote in post #4019683 (external link)
NickR,

I'm not really quite sure what you mean, I'm probably being dumb its just been a long day lol!

Tom

You have been hard at it:) I'm not very good at explaining myself, I mean frames that are flush fit round the eye so when pressing the glasses up to the viewfinder they don't start pivoting about the bridge of my nose. similar to these Police V 1508

http://it.giarre.com …en/police-model-v1508.php (external link)

Cheers


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Glenn ­ NK
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Sep 27, 2007 13:38 |  #49

number six wrote in post #4008214 (external link)
Geez. I guess I'm the only one left using ordinary bifocals.

I'm one up on you; I gave up on bi/tri-focals and the others, and use single vision specs. Fortunately after cataract surgery (both eyes) my non-corrected vision is right on at arm's length which just happens to be monitor distance). I use the specs for distance, and struggle a bit with reading unless the lighting is good (bright light gives me a smaller aperture to improve my DOF ;)).

In answer to TMR, I use a "string" on my glasses when doing photography, and drop my glasses down out of the way. This gets me closer to the eyepiece and improves composition and focusing. I'm very thankful for the dioptric adjustment.


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tsfall
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Sep 27, 2007 13:58 |  #50

Ah, I get you now Nick!! Those shouldn't be a problem, but may need a slight bit of adjustment to get optimal vision. The only problem I can envisage is that there isn't going to be much of a back vertex distance (distance from back of lens to front of eye) to accomodate varifocals. I think you are going to need a true compact varifocal such as the Sola Compact Ultra or Essilor Ellipse.

Tom


Canon 40D [Gripped]
Canon 18-55 f/3.5-5.6
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Canon 70-200 f/4 L

  
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Nick_C
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Sep 27, 2007 14:03 |  #51

I find my vision is quite a bit sharper if I lift my glasses up off my nose by about 5mm, not exactly a comfy position, but it seems I might not be viewing through the optimum part of the lens, I asked the opticians at the time (specsavers) & they had no real answer, I remember them saying they have never heard of this before, this was years ago mind you.




  
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tsfall
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Sep 27, 2007 14:52 |  #52

Hah, Nick they were telling you a load of old cobblers. What they have done is marked the glasses up incorrectly, I almost guarantee it.

Varifocals are fitted after taking a measurement of where the pupil sits in relation to the bottom of the frame. If they are made up with this measurement too low, your vision is not corrected enough, too high and it's over corrected.

In this case they have set the heights (as the measurement is called) too low in the frame. This is a common occurence and they should have checked this and remade your glasses. However, that is a problem with using a franchised optician, if they think they can save money they will!!

Tom


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Canon 18-55 f/3.5-5.6
Canon 35-80 f/4.0-5.6 [Macro Modded]
Canon 24-105 f/4 L IS
Canon 70-200 f/4 L

  
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Nick_C
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Sep 27, 2007 14:57 |  #53

tsfall wrote in post #4020286 (external link)
Hah, Nick they were telling you a load of old cobblers. What they have done is marked the glasses up incorrectly, I almost guarantee it.

Varifocals are fitted after taking a measurement of where the pupil sits in relation to the bottom of the frame. If they are made up with this measurement too low, your vision is not corrected enough, too high and it's over corrected.

In this case they have set the heights (as the measurement is called) too low in the frame. This is a common occurence and they should have checked this and remade your glasses. However, that is a problem with using a franchised optician, if they think they can save money they will!!

Tom

Right ok, well I wont let this happen again, armed with a little more knowledge than what I had back then should see that I get a better set this time for sure ;)

I live in Cornwall but I own a small property in Grays, maybe I should get my glasses back there next time I come up that way ;)




  
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tsfall
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Sep 27, 2007 14:58 |  #54

Sounds good Nick, where abouts in Grays is your property?? I may well know it or even live next door to it!!


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Nick_C
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Sep 27, 2007 14:59 |  #55

Its in College Road.




  
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tsfall
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Sep 27, 2007 15:05 |  #56

Know it well, drive by it every day on my way to work :)
Next time your in the area, come and see me at Lakeside, I'll sort your glasses out for you ;)


Canon 40D [Gripped]
Canon 18-55 f/3.5-5.6
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Canon 24-105 f/4 L IS
Canon 70-200 f/4 L

  
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Nick_C
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Sep 27, 2007 15:06 |  #57

tsfall wrote in post #4020367 (external link)
Know it well, drive by it every day on my way to work :)
Next time your in the area, come and see me at Lakeside, I'll sort your glasses out for you ;)

Small world!

Ok that will be great ;)




  
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Papaw
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Oct 02, 2007 20:30 |  #58

I just received my 85L 1.2 and for the first time it looks like I will have to learn to manual focus - if I intend on using the 1.2 in low light. I guess I will be rereading this thread as I can't figure the best way to combine my glasses (bifocal), the diopler, while manually adjusting.


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Qestion for those that wear glasses with progressive lenses or bifocals
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