Search results for 'back focus' - page 2066
K5 Autofocus with Remote
RF-602 has a green and red led for focus and shoot. It's controlled by the one button just like the shutter release. Half press to focus.
Posted by Algernon on 02/10/2012 - 21:02
Macro-very narrow focus area at full magnification
Hi, I bought a Pentax 100mm f2.8 1:1 magnification lens. If I'm taking a photo of something at the max magnification (very close up to the subject) there's a very small area that's sharp/in focus no matter what aperture setting I'm using. (no examples on hand at the moment) Is there anything I...
Posted by dinneenp on 05/03/2012 - 14:18
Macro-very narrow focus area at full magnification
That's the first post I've ever seen complaining that a macro image is too sharp and/or in focus:D
Posted by milamber on 05/03/2012 - 14:49
Macro-very narrow focus area at full magnification
Pa is referring to the limited deepth of field and this will be more and more limited the closer we get. If you want as much in focus as possible, use the smallest aperture that's reasonable (start with f16 perhaps) and use a tripod as the shutter speed may well be quite slow. What you are see...
Posted by johnriley on 05/03/2012 - 15:09
Macro-very narrow focus area at full magnification
Pa is referring to the limited deepth of field and this will be more and more limited the closer we get. If you want as much in focus as possible, use the smallest aperture that's reasonable (start with f16 perhaps) and use a tripod as the shutter speed may well be quite slow. What you are see...
Posted by dinneenp on 05/03/2012 - 15:24
Macro-very narrow focus area at full magnification
Pa is referring to the limited deepth of field and this will be more and more limited the closer we get. If you want as much in focus as possible, use the smallest aperture that's reasonable (start with f16 perhaps) and use a tripod as the shutter speed may well be quite slow. What you are see...
Posted by AxelLuther on 05/03/2012 - 15:45
Macro-very narrow focus area at full magnification
Another thing to bear in mind when using full 1:1 magnification is that at the point of focus there is effectively 1/3rd in front and 2/3rds behind (thereabouts) actually within the depth of field for a given aperture and therefore in focus. So if you are taking a side on shot of say a caterpillar a...
Posted by genesisphil on 05/03/2012 - 15:48
Macro-very narrow focus area at full magnification
Hi, I bought a Pentax 100mm f2.8 1:1 magnification lens. If I'm taking a photo of something at the max magnification (very close up to the subject) there's a very small area that's sharp/in focus no matter what aperture setting I'm using. (no examples on hand at the moment) Is there anything I...
Posted by JohnX on 05/03/2012 - 17:14
Macro-very narrow focus area at full magnification
Focus stacking is one way, but I prefer to work with the limited DOF and try to compose the image to benefit from it. Easier said than done. Example; if you are photographing something long like a Grasshopper, shoot it side-on if you want most of it sharp. However, shoot it from the front thr...
Posted by davidstorm on 05/03/2012 - 21:22
Macro-very narrow focus area at full magnification
Another thing to bear in mind when using full 1:1 magnification is that at the point of focus there is effectively 1/3rd in front and 2/3rds behind (thereabouts) actually within the depth of field for a given aperture and therefore in focus. So if you are taking a side on shot of say a caterpillar a...
Posted by genesisphil on 06/03/2012 - 09:38
Macro-very narrow focus area at full magnification
Another thing to bear in mind when using full 1:1 magnification is that at the point of focus there is effectively 1/3rd in front and 2/3rds behind (thereabouts) actually within the depth of field for a given aperture and therefore in focus. So if you are taking a side on shot of say a caterpillar a...
Posted by ChrisR on 06/03/2012 - 09:46
Macro-very narrow focus area at full magnification
I think you will find that close up it's nearer... 50% in front 50% behind :shock: :wink:
Posted by Algernon on 06/03/2012 - 09:55
Macro-very narrow focus area at full magnification
I think you will find that close up it's nearer... 50% in front 50% behind :shock: :wink: Really?, Hmmm thanks Algi - must experiment more ! :)
Posted by genesisphil on 06/03/2012 - 10:16
Macro-very narrow focus area at full magnification
Fill in the numbers :) http://www.dofmaster.com/dofjs.html 100mm, 30cm subject distance f/8 2mm DOF (-1 / +1) f/16 4mm DOF (-2 / +2)
Posted by sterretje on 06/03/2012 - 11:09
Macro-very narrow focus area at full magnification
I like that dofmaster....very useful. Shows exactly how little dof there is on macro shots.:shock:
Posted by darkskies on 06/03/2012 - 14:26
K5 built in flash
Hi Bernard. I suspect that's exactly what is going on, based on the fact the flash duration is shorter than the flash sync shutter speed. The more I've tested it the more it's frustrated me. Pentax Tech Support (087...) said "update the firmware and try it again, in the mean time we'll get back t...
Posted by rideguide on 07/03/2012 - 18:20
K5 built in flash
Hi Bernard. I suspect that's exactly what is going on, based on the fact the flash duration is shorter than the flash sync shutter speed. The more I've tested it the more it's frustrated me. Pentax Tech Support (087...) said "update the firmware and try it again, in the mean time we'll get back t...
Posted by Frogfish on 07/03/2012 - 19:12
dowloading latest firmware for K20d without card reader
Maggi - if it is possible to use your camera as a MASS STORAGE DEVICE when connected to your Mac via cable, install a BLANK memory card, then download the firmware update to the camera as your MSD. This will download the firmware as a zip file, so you will need to browse to your MSD, then extract th...
Posted by steven9761 on 08/03/2012 - 07:45
dowloading latest firmware for K20d without card reader
Hi Steven. May I first thank you for taking the time to post, the information it is appreciated. The only problem is, I have near to zero computer skills. Don’t really know what device drivers are or how to access them. I am going to get the local computer engineering services to have a look a...
Posted by ChrisR on 09/03/2012 - 09:30
using Da lenses with 2X `A` converter
Thanks, I understand the 1/1.5 bit and focal lenght bit, I was just out of focus as to when to apply it in SR, thanks for the help Guys. Rob W.
Posted by robwakefield on 10/03/2012 - 20:53
