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Diopter control - EVF - Back-screen

Started Feb 16, 2022 | Discussions
jboyer
jboyer Senior Member • Posts: 1,373
Diopter control - EVF - Back-screen
1

I reached a point where I had to get my cataracts removed. The surgeon suggested using corrected replacements for DISTANCE viewing. This means about 1 to 1 1/2 meters to infinity without glasses.

For short distance, I will need glasses.

When using an EVF, the diopter control is perfect. When looking at the screen on an M100, for example, my arms are too short. This camera becomes hard to use, as any camera without EVF.

I wonder if any member of this forum faced a similar situation and resolved it  -- without buying an external EVF,

Thanks.

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Sittatunga Veteran Member • Posts: 5,406
Re: Diopter control - EVF - Back-screen
2

jboyer wrote:

I reached a point where I had to get my cataracts removed. The surgeon suggested using corrected replacements for DISTANCE viewing. This means about 1 to 1 1/2 meters to infinity without glasses.

For short distance, I will need glasses.

When using an EVF, the diopter control is perfect. When looking at the screen on an M100, for example, my arms are too short. This camera becomes hard to use, as any camera without EVF.

I wonder if any member of this forum faced a similar situation and resolved it -- without buying an external EVF,

Thanks.

You have my sympathy.  There isn't really an ideal choice.  The cheap screen loupes you can buy are very bulky and present the image at less than arm's length.  Mine has a slot for the tripod screw, so that at least I can slide it out to focus it on infinit,. That gives my finger room to work the touchscreen, but it's cheap and nasty.  Another alternative would be bifocal or varifocal spectacles - photochromic ones would at least save you having to keep track of sunglasses.  My sister wears contact lenses, one closeup and one distance, but neither lens is ideal for midrange, i.e. computer screen distance.

drsnoopy Senior Member • Posts: 1,216
Re: Diopter control - EVF - Back-screen
2

If you’r distance correction is perfect, that’s ideal for driving etc.  But for your camera’s LCD screen you’ll need near vision correction - i.e. reading glasses.  Either bifocals with a clear top part, or “half moon” glasses.  Avoid  varifocals as the intermediate section tends to produce distortion and they are more difficult to position accurately.  This would also be a good solution for smartphone/tablet etc.

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Sittatunga Veteran Member • Posts: 5,406
Re: Diopter control - EVF - Back-screen
1

drsnoopy wrote:

If you’r distance correction is perfect, that’s ideal for driving etc. But for your camera’s LCD screen you’ll need near vision correction - i.e. reading glasses. Either bifocals with a clear top part, or “half moon” glasses. Avoid varifocals as the intermediate section tends to produce distortion and they are more difficult to position accurately. This would also be a good solution for smartphone/tablet etc.

Cheap varifocals have very limited sizes for the reading and middle distance zones.  The very expensive ones are a lot better, with less distortion, and the distortion gets almost unnoticeable after a few weeks (at least, you get used to it). Having said that, I prefer bifocals to my top of the range varifocals if I'm using an eyepiece, though I'd rather drive in varifocals, and it's easier to see prices on supermarket shelves.  e-books are  better on a phone than on a pad with varifocals,  as I get more words in focus at the same time.  And mid- range computer screen glasses save you cricking your neck at the keyboard (any decent employer will pay for these if you need to use a computer for work).

R2D2 Forum Pro • Posts: 26,528
Re: Diopter control - EVF - Back-screen
1

jboyer wrote:

I reached a point where I had to get my cataracts removed. The surgeon suggested using corrected replacements for DISTANCE viewing. This means about 1 to 1 1/2 meters to infinity without glasses.

For short distance, I will need glasses.

When using an EVF, the diopter control is perfect. When looking at the screen on an M100, for example, my arms are too short. This camera becomes hard to use, as any camera without EVF.

I wonder if any member of this forum faced a similar situation and resolved it -- without buying an external EVF,

Thanks.

I shoot with these...

Full frame reading glasses

No correction up top, readers on the bottom.  They work great for me.

R2

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jboyer
OP jboyer Senior Member • Posts: 1,373
Re: Diopter control - EVF - Back-screen
1

Thanks for the suggestions. The 1/2 moon glasses seem 'good' keeping the rear LCD in focus as well as the scenery you are shooting.

If one wants to wear no glasses, then EVF seems to be the only solution.

Kidding:  I asked the surgeon for Bluetooth IOLs. With connection to my camera EVF. She said she would check the development status of this project and come back to me on this question. So far, she has been mute... LOL

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Andy01 Veteran Member • Posts: 5,188
Re: Diopter control - EVF - Back-screen
5

Unfortunately you are correct in thinking that an EVF is the only "easy" option. I have needed glasses for reading for some years, and in 2016 I bought a M3 (fire sale) for a safari trip as a backup camera.

I found that it was a real pain to use because I had to wear glasses (I did have good multifocals) all the time to use the M3 but when I switched to my (at the time) 70D + 100-400L the glasses got in the way (because the diopter was set for no glasses).

I did buy a second hand add-on EVF for the M3, and while it was quite usable, I found that the camera with EVF fitted went from being a nice compact shape & size to an awkwardly shaped lump that annoyed me.

Soon after that I replaced the M3 with a M5 and still have it.

This is a prime example of why the M6 ii and lack of a M5 ii excludes a decent portion of Canon's potential target market.

Colin

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Sue Anne Rush
Sue Anne Rush Senior Member • Posts: 6,285
Re: Diopter control - EVF - Back-screen
1

Hello...

jboyer wrote:

I reached a point where I had to get my cataracts removed. The surgeon suggested using corrected replacements for DISTANCE viewing. This means about 1 to 1 1/2 meters to infinity without glasses.

For short distance, I will need glasses.

When using an EVF, the diopter control is perfect. When looking at the screen on an M100, for example, my arms are too short. This camera becomes hard to use, as any camera without EVF.

I wonder if any member of this forum faced a similar situation and resolved it -- without buying an external EVF,

Thanks.

Thank you for your post - and I like your website - beautiful photographs.

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Sue Anne Rush

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jboyer
OP jboyer Senior Member • Posts: 1,373
Re: Diopter control - EVF - Back-screen
1

Sue Anne Rush wrote:

Hello...

jboyer wrote:

I reached a point where I had to get my cataracts removed. The surgeon suggested using corrected replacements for DISTANCE viewing. This means about 1 to 1 1/2 meters to infinity without glasses.

For short distance, I will need glasses.

When using an EVF, the diopter control is perfect. When looking at the screen on an M100, for example, my arms are too short. This camera becomes hard to use, as any camera without EVF.

I wonder if any member of this forum faced a similar situation and resolved it -- without buying an external EVF,

Thanks.

Thank you for your post - and I like your website - beautiful photographs.

Thanks, Sue Anne. I follow your posts and enjoy them.

Regards.

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Canon EOS M100 Canon EOS M50 Canon EOS RP Canon EF 50mm F1.8 II Canon EF 100-400mm f/4.5-5.6L IS USM +8 more
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