Search results for 'back focus' - page 1579
A Feeble Review...
We all make mistakes :D While some of feebs comments back then might not have been too diplomatic on a Pentax forum :) it's hard to argue with them, when you consider that the k5 is a vast improvement over older Pentax cameras, especially the pre k7 ones, yet the 2 year old D700 is still superio...
Posted by thoughton on 13/01/2011 - 20:02
A Feeble Review...
Last thing I read she was starting to totally regret her move back to Pentax.
Posted by Mike-P on 13/01/2011 - 20:09
A Feeble Review...
Apologies if this is backtracking a bit but I was just catching up on recent posts and this thread grabbed by attention. I was intrigued by Robbie's (rather selective!) quotes above and this prompted me to look at Feeb's post about leaving Pentax back in Sept 09. I have to say that it is one of ...
Posted by Adam on 14/01/2011 - 23:22
How does camara decide which AF point to use?
Mine appears to go "Eany meanie miny moe" unless I set it to centre spot then focus and re-compose.:lol:
Posted by Don on 07/01/2011 - 20:36
How does camara decide which AF point to use?
How does a camera decide which autofocus point to use? With 11 to choose from why would one be any better to use than the others? becuase it's closest to the part of the scene you want in focus ???
Posted by Smeggypants on 07/01/2011 - 20:37
How does camara decide which AF point to use?
I like this theory! However how does the camera know which bit I want to focus on?
Posted by robheath on 07/01/2011 - 20:58
How does camara decide which AF point to use?
It doesn't and that's the problem. So, if you use centre focus only you can focus, lock, recompose, shoot and get it right every time.
Posted by johnriley on 07/01/2011 - 21:06
How does camara decide which AF point to use?
truthfully it measures contrast and brightness and looks for sharp edges/lines and then uses a mathematical algorithm to adjust focus to the point that is most likely to be a subject within the af zones.. in other words voodoo or witchcraft. Stick to the centre spot and recompose method.
Posted by Don on 07/01/2011 - 21:11
How does camara decide which AF point to use?
Stick to the centre spot and recompose method. Except at airshows using AF-C. I defy most people to pan so accurately as to keep a fast jet hurtling past at 400 mph bang in the centre AF spot. If you can't, and I certainly can't, what happens is that you get it slightly wrong, and the lens hun...
Posted by Don on 07/01/2011 - 22:27
How does camara decide which AF point to use?
How does a camera decide which autofocus point to use? With 11 to choose from why would one be any better to use than the others? Magic Pixies (tm). Following scientific development from the Sirius Cybernetics Corporation (makers of the famous ), the Magic Pixies (tm) in your camera will in l...
Posted by flossie on 07/01/2011 - 23:34
How does camara decide which AF point to use?
My little sony compact has smile recognition. I'm suer it will be possible in the future to have object recognition, so that at an airshow you can tell the camera to focus on what it thinks is a plane flying
Posted by Smeggypants on 07/01/2011 - 23:53
How does camara decide which AF point to use?
:twisted:My little sony compact has smile recognition. I'm suer it will be possible in the future to have object recognition, so that at an airshow you can tell the camera to focus on what it thinks is a plane flying I'm a portrait photographer. you want to impress me? Show me a camera that ...
Posted by Don on 08/01/2011 - 04:02
How does camara decide which AF point to use?
Do you mean AF-C Chris? I found this simply not up to taking fast aircraft shots with my K20 and 150-500 or DA* 300. I do mean AF-C, yes, although I wouldn't say I use it all the time, and in fact I only use it to any significant extent at airshows. Haven't used either of the lenses you refe...
Posted by ChrisA on 08/01/2011 - 10:18
How does camara decide which AF point to use?
Spot is great but sometimes you need to focus on something that is not central to your viewfinder so on these occasions its wise to use sel and chose the point that you want to be the point of focus and either position your subject there or wait for it to arrive, if a moving target.
Posted by SteveEveritt on 08/01/2011 - 13:22
How does camara decide which AF point to use?
Ah see now that is where I've found the great function on the K5 (don't think it was on the K7) where you can set you camera up and then in live view move your selection point anywhere around on your rear screen to pick you focus point. It was something I found whilst tinkering the other night and a...
Posted by GDN on 08/01/2011 - 13:42
How does camara decide which AF point to use?
When photographing aircraft I don't use AF-S, but use AF-C (continous AF) and single centre point focus as well - it worked well with the K7... I'm looking forward to using the K5.. :)
Posted by GDN on 08/01/2011 - 15:59
How does camara decide which AF point to use?
I very much doubt it is predictive. I suspect the issue is speed or lack of it. I use AF-S but with a full press of the shutter button so as soon as you get focus confirmation the picture is taken. The other obvious tactic which I suspect we all use is to take the picture when the aircraft's r...
Posted by Oggy on 08/01/2011 - 17:02
How does camara decide which AF point to use?
Ah see now that is where I've found the great function on the K5 (don't think it was on the K7) where you can set you camera up and then in live view move your selection point anywhere around on your rear screen to pick you focus point. It was something I found whilst tinkering the other night and a...
Posted by Pentaxophile on 08/01/2011 - 19:39
How does camara decide which AF point to use?
When I'm photographing stock cars I use AF-C (continous AF) If I'm photographing at either Buxton or Birmingham I use single centre point focus because I shoot through the safety fencing.
Posted by malvern_man on 09/01/2011 - 21:19
Well, I have done it. My Building society account is lighter.
I have made the decision. With the age of both my K20D and K10D getting on and both have 30000 plus shots under their belts. It was time to indulge in something new. Something that will be more reliable when it comes to AF (read my other thread on the frustrations with both my K10D and K20D recently...
Posted by Offertonhatter on 08/01/2011 - 20:15
