Aaron John Dizon
ok, question to photographers or anyone who knows about dslr cameras. when you're taking a photo, and you're still adjusting the shutter speed, f-stop and ISO, is the output of the shot already visible on the view finder, or you have to take the shot to see the output. sorry for this dumn question. i'm #Blind and really interested on these things. plus, i'm trying to explain to a sighted family member how to adjust the settings on our camera. haha! #Photography #DSLR #Camera #Photographer #CapturingBlind
Mar 18, 2024 at 2:13pmWeb
Show threadRobo V.Mar 18, 2024
@aaronjohn0412 My Nikon D7200 in Live view photo mode does not show any adjustment on the displayed view. It is only usable for composition and focus.
After switching to video mode, it shows some approximation that follows the changes of exposure or ISO, but it is only relevant for the video capture, the resulting photo may is quite darker.
Show threadAaron John DizonMar 18, 2024
@wra thanks for this. so the settings you might see depends on the camera model?
Show threadanamukMar 18, 2024
@aaronjohn0412 adjusting the F-stop will give you an idea of the depth of field through the viewfinder. Adjusting the ISO is more about picture noise or grain. You can't see it through an optical viewfinder & the fidelity through a digital viewfinder is not 100% so you get an idea, but need to take the shot.
Show threadAaron John DizonMar 18, 2024
@anamuk thanks for giving me an idea. so it means, the f-stop is the only like a realtime adjustment you can see, the other 2 will be your judgement?
Show threadanamukMar 18, 2024
@aaronjohn0412 pretty much yes, you can have an idea about shutter speed, but some of the blurring effects you can only see in the final image.
Show threadAaron John DizonMar 18, 2024
@anamuk wow, so basically, as a blind person who's trying to take a shot, i just need to familiarise myself on the camera settings that i am using, which is canon 600d by the way, and then i can get a good shot. wow!
Show threadanamukMar 18, 2024

@aaronjohn0412 I would say so lower F-stop is a shorter depth of field. Lower shutter speed is more blur (too low will be blurred from your body trembling unless on a tripod or solid mount). High ISO is more grain or noise. You need to balance all 3 to get the right amount of light. You can play with each to get different effects

Good luck!

Show threadAaron John DizonMar 18, 2024
@anamuk thank you very much! i'll post some of my photos here some time
Show threadM. VerdoneMar 18, 2024

@aaronjohn0412 before the photo is taken the aperture (f-stop) is wide open so that more light comes into the viewfinder. This makes it easier to see what you're shooting, and what you've focused on, because the focus depth is very narrow when the f stop is fully open.

There is a preview button that, when pushed down, sets the f stop to what will be used to take the photo. So, then you can see what the focus will be in the final image, but the image is dim and harder to see.

The shutter speed and ISO don't affect what appears in the viewfinder.

Show threadAaron John DizonMar 20, 2024
@sixohsix so basically, you have to estimate the shutter speed and the ISO base on judgement? thanks for the answer by the way
Show threadM. VerdoneMar 20, 2024

@aaronjohn0412 basically yes. There are multiple combinations of f stop, ISO, and shutter speed that produce a correctly exposed image, meaning the right amount of light has come to the sensor. The camera can automatically find all solutions but you have to decide which solution makes sense.

If ISO is too high the picture is grainy (the details are rough like sandpaper).

If the f stop is too low (open) the picture is clear for only things at a specific distance from the camera, and the rest of the image is blurry (soft or fuzzy).

If the shutter speed is too low then fast moving objects are smeared out or stretched, because of the long amount of time the image took to capture.

The photographer has to decide what to sacrifice. The camera manual will say what modes prioritize what settings at the expense of others.

Show threadAaron John DizonMar 20, 2024
@sixohsix well, thank you very much for this insight. i think i can experiment myself as a #Blind person to take photos. well, if i took many of them, i'm sure one of them could be good. :-)