Search results for 'back focus' - page 1523
FS: Pentax K20D body
Thordell ref your comment on manual focus on k7 can you not use the focus indicator to show the subject is in focus, i thought this was possible Yes, you can, but it is disconcerting to take shots when the view I have in the view finder shows me an out of focus image. Mind you it is no easier with ...
Posted by Thordell on 15/07/2010 - 22:40
To the people who love manual focus...
Manual focus with the stock focus screen is not very easy, so I assume that the people who claim manual focus is fun and quick must be using custom focus screens. Is that a fair assumption? For my K7, I have a custom screen from focusingscreen.com. (It's the K3 focus screen). It has a split prism...
Posted by Dubious Drewski on 18/06/2010 - 21:12
To the people who love manual focus...
I hardly ever use my one and only autofocus lens but have never felt the need to change the screen on my K100. Perhaps it isn't possible. I can't say all my pictures are sharp, but they aren't with autofocus, either! Apologies, I've just realised this is no use at all to you and doesn't answer yo...
Posted by bwlchmawr on 18/06/2010 - 21:23
To the people who love manual focus...
I have been using the katzeye screen with optibrite and a split screen and have found it excellent. My only wish us that the split screen was at 45 degrees. Best wishes, Kris.
Posted by womble on 18/06/2010 - 21:31
To the people who love manual focus...
I have exactly the same screen as Kris, and have exactly the same comments. It's not cheap but it works well. Jon
Posted by JonSchick on 18/06/2010 - 22:05
To the people who love manual focus...
I tried one of the cheap Chinese screens and wasn't impressed, it's just too dark (especially with a filter) and the split prism bit is too big for APS-C as they're cut down from a 35mm screen. I've changed back to a standard screen and turned the in focus beep back on. Given that my favourite ma...
Posted by Dangermouse on 18/06/2010 - 22:05
To the people who love manual focus...
i use my 50mm prime a lot without split screen, and just browse the katzeye split screen and it really cost a lot. the good ones are expansive, huh?
Posted by ReklawyksEkul on 19/06/2010 - 03:22
To the people who love manual focus...
The screen makes no difference to DoF. The camera is an SLR and WYSIWYG, however a faster lens will give a brighter screen image and reduced DoF.
Posted by gartmore on 19/06/2010 - 06:28
To the people who love manual focus...
The screen makes no difference to DoF. I'm sorry, this is incorrect. It sounds strange, but it's true. Your DSLR meters wide open, right? Well look through your viewfinder and pay attention to the DOF you see through it. Then take the shot wide open and look at the photo you just took. The DOF will...
Posted by Dubious Drewski on 19/06/2010 - 08:45
To the people who love manual focus...
Can you explain the physics behind this?
Posted by mikew on 19/06/2010 - 08:54
To the people who love manual focus...
Well look through your viewfinder and pay attention to the DOF you see through it. Then take the shot wide open and look at the photo you just took. The DOF will be thinner. As a general rule, the DOF in the viewfinder is about 3 times deeper than the captured DOF. I HAVE noticed that effect, but al...
Posted by Pentaxophile on 19/06/2010 - 09:08
To the people who love manual focus...
The screen is not involved at all when taking the picture. It has no effect whatsoever on the image the lens projects onto the sensor.
Posted by johnriley on 19/06/2010 - 09:20
To the people who love manual focus...
The screen is not involved at all when taking the picture. It has no effect whatsoever on the image the lens projects onto the sensor. Right. We're just talking about what you see through the viewfinder, and how there are discrepancies between that and the captured image. Can you explain the physic...
Posted by Dubious Drewski on 19/06/2010 - 09:55
To the people who love manual focus...
If there actually is a disparity between the image you see on the focussing screen and what is projected in the sensor - and I still think the effect is a trick of the eye - wouldn't that be more likely to be an effect of the pentaprism/mirror which diverts the light onto the focussing screen, rathe...
Posted by Pentaxophile on 19/06/2010 - 10:26
To the people who love manual focus...
Right. We're just talking about what you see through the viewfinder, and how there are discrepancies between that and the captured image. There are discrepancies, but in essence the image you see is what you get, as far as the tiny screen allows. As for judging DOF, I've always found that well nig...
Posted by johnriley on 19/06/2010 - 10:27
To the people who love manual focus...
What I want is an accurate focus screen that makes it very easy to see my plane of focus. I don't care how dim the screen is. With a really dim screen you'll find it virtually imossible to judge sharp focus, especially with a fast lens @ f/1.4 because the DoF is very shallow. Back in the day when I ...
Posted by johnwhit on 19/06/2010 - 11:17
To the people who love manual focus...
especially with a fast lens @ f/1.4 because the DoF is very shallow. I'm going to disagree with that. The faster the lens the easier manual focus is, for two reasons. One, the image is brighter, so the eye can see better details. Two, the limited DOF makes the exact point of focus very precise...
Posted by johnriley on 19/06/2010 - 12:08
To the people who love manual focus...
especially with a fast lens @ f/1.4 because the DoF is very shallow. I'm going to disagree with that. The faster the lens the easier manual focus is, for two reasons. One, the image is brighter, so the eye can see better details. Two, the limited DOF makes the exact point of focus very precise...
Posted by johnwhit on 19/06/2010 - 12:31
To the people who love manual focus...
It only gives a dim image with slow lenses, the max aperture determines viewfinder brightness at the end of the day.
Posted by gartmore on 19/06/2010 - 14:09
To the people who love manual focus...
It only gives a dim image with slow lenses, the max aperture determines viewfinder brightness at the end of the day. Have you read the original post? John
Posted by johnwhit on 19/06/2010 - 14:55
