Focus with or Without Glasses?
Mar 30, 2012 00:17:59 #
What has been your experience? I wear graduated bifocals (no line), which I usually leave on when I am using the viewfinder. Will I get better or worse results (focus) if I take them off.
Mar 30, 2012 00:36:38 #
Kenny I do both if i'm doing manual focus I set my view finder to match my eye that works fairly well but the auto lens does a better job as i have a bad astigmatism. I also use my glasses which works as well as the auto. Not much help i know. I wear bifocals with a line I'm near sited so I keep the bifocal area small
Mar 30, 2012 02:31:30 #
If you adjust the diopter on your camera for your eyesight without your glasses ... you won't see much of a difference. I do that now and then but then I forget to remove the glasses .. so I have to reset it again.
I have no line trifocals .. so I can get the camera to focus in just fine but I can't see the photo on the screen w/o my glasses ... it's a vicious circle.
I have no line trifocals .. so I can get the camera to focus in just fine but I can't see the photo on the screen w/o my glasses ... it's a vicious circle.
Mar 30, 2012 09:25:54 #
docrob
Loc: Durango, Colorado
Kenny wrote:
What has been your experience? I wear graduated bifocals (no line), which I usually leave on when I am using the viewfinder. Will I get better or worse results (focus) if I take them off.
only you can see the difference - go look
Mar 30, 2012 09:50:39 #
If you do a lot of manual focusing, particularly at wide open f-stops (f/1.8), why not try a split circle focusing screen?
I use a manual focus f/1.2 lens a lot, and the split circle screen makes a huge difference in both speed and accuracy, and it doesn't make any difference if I have my glasses on or off.
I use a manual focus f/1.2 lens a lot, and the split circle screen makes a huge difference in both speed and accuracy, and it doesn't make any difference if I have my glasses on or off.
Mar 30, 2012 14:28:01 #
What, prey tell, is a split circle focusing ring? Is this some sort of attachment, or must the camera be modified? My main camera is a Canon T3i.
Mar 30, 2012 14:37:06 #
Your camera has a focusing screen, which is a piece of glass under the prism that has the boxes that surround the dots that light up to show that you are in focus with the AF system.
A split circle focusing screen is a replacement piece of glass (and I choose not to replace mine - I have a camera repair facility do it, but that's another story). The split circle focusing screen will show you two half circles. You visually superimpose those half circles over an object in your frame. (Person, fence post, window frame, whatever). If that object is in focus, the two halves of the split circle will line up. If that object is not in focus, they will be offset and you adjust focus until they do line up.
I use KatzEye brand, but there are others as well.
A split circle focusing screen is a replacement piece of glass (and I choose not to replace mine - I have a camera repair facility do it, but that's another story). The split circle focusing screen will show you two half circles. You visually superimpose those half circles over an object in your frame. (Person, fence post, window frame, whatever). If that object is in focus, the two halves of the split circle will line up. If that object is not in focus, they will be offset and you adjust focus until they do line up.
I use KatzEye brand, but there are others as well.
Mar 30, 2012 15:56:30 #
Kenny wrote:
What has been your experience? I wear graduated bifocals (no line), which I usually leave on when I am using the viewfinder. Will I get better or worse results (focus) if I take them off.
I wear no line bifocals and keep my glasses on. I adjusted the diopter to make things clear with my glasses.
Mar 30, 2012 16:00:05 #
Pepper
Loc: Planet Earth Country USA
Mac wrote:
I wear no line bifocals and keep my glasses on. I adjusted the diopter to make things clear with my glasses.
Kenny wrote:
What has been your experience? I wear graduated bifocals (no line), which I usually leave on when I am using the viewfinder. Will I get better or worse results (focus) if I take them off.
I wear no line bifocals and keep my glasses on. I adjusted the diopter to make things clear with my glasses.
:thumbup:
Mar 30, 2012 16:14:39 #
I just had a Katzeye put in my 50D. I love it but it was expensive (at least it was for me)
Mar 30, 2012 17:41:20 #
photocat
Loc: Atlanta, Ga
I never shoot with my glasses on, I have adjusted the built in diopter ; nice they are built in these days. Years ago we had to buy them and of course as one's eyes changed so did the diopter and of course they weren't cheap :)
Split screen was very popular in the 50's and wasn't an add on as it is today. Makes me wonder if i ....... oh well, maybe not.
Anyone else notice the ad at the bottom of this list. Coastal glasses :)
Split screen was very popular in the 50's and wasn't an add on as it is today. Makes me wonder if i ....... oh well, maybe not.
Anyone else notice the ad at the bottom of this list. Coastal glasses :)
Mar 30, 2012 18:06:37 #
I wear reading glasses over my contacts to read. My long vision with contacts is good. Short vision not so good. I adjust the diopter to bring things into focus and also check for the green dot to make sure I'm in focus. I have a D7000 but if I ever get a D800 I look forward to the larger viewfinder.
Mar 30, 2012 18:24:44 #
photocat wrote:
I never shoot with my glasses on, I have adjusted the built in diopter ; nice they are built in these days. Years ago we had to buy them and of course as one's eyes changed so did the diopter and of course they weren't cheap :)
Split screen was very popular in the 50's and wasn't an add on as it is today. Makes me wonder if i ....... oh well, maybe not.
Anyone else notice the ad at the bottom of this list. Coastal glasses :)
Split screen was very popular in the 50's and wasn't an add on as it is today. Makes me wonder if i ....... oh well, maybe not.
Anyone else notice the ad at the bottom of this list. Coastal glasses :)
Split circle and other visual focusing screens were popular in the 50's because every camera and lens were manual focus. If you use AF all the time, there is no need for a split circle focusing screen. If you use manual focus, they still work well.
Mar 30, 2012 18:26:01 #
photocat
Loc: Atlanta, Ga
I know that, i just don't want to pay the price to change the screen. Call me cheap.
Mar 30, 2012 18:31:46 #
ditto
Mac wrote:
I wear no line bifocals and keep my glasses on. I adjusted the diopter to make things clear with my glasses.
Kenny wrote:
What has been your experience? I wear graduated bifocals (no line), which I usually leave on when I am using the viewfinder. Will I get better or worse results (focus) if I take them off.
I wear no line bifocals and keep my glasses on. I adjusted the diopter to make things clear with my glasses.
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