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Questions tagged [diopter]

1. Focusing power of a lens; "diopters" is the inverse of a lens's focal length (1/ ƒ), in units of \$[\text{m}^{-1}]\$. 2. An add-on front "filter" lens used for close-focusing/macro, whose focusing power is described in diopters.

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Is a diopter recommended for a 56mm lens?

I have a Sigma 56mm f/1.4 and Sony a6400. I'm looking into buying a diopter because it seems to be relatively cheap and can reduce the minimum focus distance while also zooming in, which I both want. ...
Sleepi's user avatar
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6 votes
5 answers
2k views

Can you determine if focus is sharp without diopter adjustment if your sight is imperfect?

I've already encountered this question about wearing glasses as a photographer. A more specific question I have is as follows. If your eyesight is not perfect, or your glasses and/or contact lenses ...
G_H's user avatar
  • 911
2 votes
1 answer
289 views

The view through my canon 100D viewfinder is blurry [duplicate]

The title sums it up. I upgraded to full frame and when I reused my canon 100D I realized that I just could not see clearly through the viewfinder. Everything is blurry, even the parameters, even when ...
Melman's user avatar
  • 29
2 votes
1 answer
208 views

Does diopter settings change when lens is put on backwards?

One way of doing macro photography on the cheap is to flip the lens backwards I am having issues focusing, the diopter is calibrated but when I flip the lens the focus of taken picture is not the ...
Ruslan's user avatar
  • 819
1 vote
2 answers
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100D dioptric adjustment

I was playing a bit with my dioptric adjustment and found out that I see best with that being set to the lowest value. How is this possible? My eyesight is probably nearly perfect and I would ...
user avatar
3 votes
4 answers
1k views

Is there a way to fixate the diopter adjust knob on Canon DSLR?

Sometimes, without noticing, probably when pulling the camera out of the bag or inserting it, the diopter knob turns by accident and gets the viewfinder out of focus, and ruins by that the manual ...
alechko's user avatar
  • 41
1 vote
3 answers
189 views

How do I prevent my viewfinder diopter from getting miscalibrated?

I've had this issue with other cameras but seems especially bad with my Nikon Df. I keep the camera upside down at my side on a shoulder strap that screws to the bottom, so I think hitting against my ...
Sonic Soul's user avatar
  • 1,069
5 votes
3 answers
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How do I chose the right "correction eyepiece" when I need to go past the furthest left on a Nikon viewfinder?

I want to buy a Correction Eyepiece to correct my view. and I am hesitated between (-2.0) the minus diopter and (+2.0) the plus diopter and I don't know what to choose. I've got my Nikon camera ...
hsawires's user avatar
  • 383
2 votes
1 answer
2k views

How can I correct a blurry viewfinder beyond the built-in adjustment?

Over the ages, my eyes are not healthy as I was younger, and now my viewfinder is getting much more blurry. I've adjusted it to adjustment limit. And, it is hard to use my eye glasses, especially when ...
hsawires's user avatar
  • 383
16 votes
1 answer
9k views

Why is sharpness lost in my DSLR viewfinder?

I have a fairly new Nikon D7000 (I've taken about 2000 pictures). Something happened during my last trip, where thew viewfinder never gets sharp anymore. It always looks out of focus, regardless if ...
Sonic Soul's user avatar
  • 1,069
4 votes
2 answers
465 views

D200 diopter setting [duplicate]

Possible Duplicate: How do I calibrate the diopter correction on my DSLR’s viewfinder? I've messed up the diopter setting on my Nikon D200. I tried to set it up manually, but I don't feel ...
coool killer's user avatar
7 votes
3 answers
4k views

How can I accurately focus manually on an APS-C DSLR?

My favorite portrait lens is the Nikon 50mm 1.4G. I love the light and what it is capable of. My problem with it is that on my D90 the AF is sometimes horribly slow, and in many cases (mainly low ...
Steve the Maker's user avatar
14 votes
4 answers
39k views

What is the small +- wheel next to my view port for?

I had a scare last night when everything in my view port looked blurry on my brand new Canon 60D, even the digital display a red focus boxes. The images photos came out clear, the live view was clear,...
JD Isaacks's user avatar
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28 votes
3 answers
14k views

How do I calibrate the diopter correction on my DSLR's viewfinder?

The viewfinder on my camera has diopter correction, but is there a "correct" way to set it up? In the past I've just allowed the camera to auto-focus on a distant point, and then make sure that is as ...
Rowland Shaw's user avatar
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