Search results for 'back focus' - page 2080
DA 300mm - back focusing?
Cheers Matt I have a K-r so is that the AF fine adjustment option? Can't see an 'apply one' or apply all' option.
Posted by milamber on 23/10/2012 - 12:09
DA 300mm - back focusing?
But you don't need the debug mode for K5 & K7 as it's already available. For the K-r you'll need the debug mode ;) It's a bit more complicated - Other models will pick up a specially named file off the SD card... there's probably one for the K-r too. Matt
Posted by MattMatic on 23/10/2012 - 12:10
DA 300mm - back focusing?
Low light, a long lens,spot auto focussing and how much can you stop down your lens and keep the shutter speed up before the ISO gets too high? I find taking plenty of shots to be patient for the good ones works when shallow depth of field in low light is the order of the day. Friday's cold north...
Posted by wvbarnes on 23/10/2012 - 12:10
DA 300mm - back focusing?
Cheers Matt I have a K-r so is that the AF fine adjustment option? Can't see an 'apply one' or apply all' option. The K-r only has apply all unfortunately
Posted by SteveEveritt on 23/10/2012 - 12:45
DA 300mm - back focusing?
Check out your aperture used at what focal length in a table before you go messing. For example twenty feet at 5.6 and 300mm doesn't leave much latitude comapared to say F8 or F11. Plenty of calculators on the web to check out for example http://www.dofmaster.com/dofjs.html
Posted by wvbarnes on 23/10/2012 - 12:57
DA 300mm - back focusing?
Thanks all. It's brightening up a bit so I think I'll stick it on the tripod with a fixed object later to rule out any user error! The AF Fine adjustment in the custom menu seems to make a difference so I'll play with that first before anything else. If that works I'll just have to remember th...
Posted by milamber on 23/10/2012 - 13:06
DA 300mm - back focusing?
User error:oops: I've tried it on a tripod with a fixed object and it's fine. If anything it focused slightly better at -2 so clearly wasn't the lens/camera back focusing, just me. As Bill said, available light, aperture and shutter speed all seem to be that much more critical with a lens of t...
Posted by milamber on 23/10/2012 - 15:44
DA 300mm - back focusing?
I think images taken at 1/60th hand held are always going to show some camera shake unless you have a very steady grip, even with SR turned on. An old rule of thumb with film cameras was to use a shutter speed equal to or faster than the lens length in use EG: 1/300th/sec or faster for a 300mm le...
Posted by Mannesty on 23/10/2012 - 16:39
DA 300mm - back focusing?
A lens this long and heavy (at least compared to everything else I have) is going to need a technique far superior to mine to use at 1/60 and have clear images...... Monopod?
Posted by JohnX on 23/10/2012 - 16:47
DA 300mm - back focusing?
A lens this long and heavy (at least compared to everything else I have) is going to need a technique far superior to mine to use at 1/60 and have clear images...... Monopod? Possibly, but I've had one before and rarely found myself in a situation where it might be practical. Might have to get the w...
Posted by milamber on 23/10/2012 - 17:54
DA 300mm - back focusing?
Still gloomy today, but I upped the ISO to allow a slightly smaller aperture and increased shutter speeds. All at 640 ISO and f8. All the wildlife is in hiding so static subjects only, apart from one of my hens (which isn't quite perfect so more practice needed with moving objects). No PP other t...
Posted by milamber on 24/10/2012 - 12:50
DA 300mm - back focusing?
I've never used one so would be interested in how people think these images compare to the 55-300 at 300mm? 300mm on the 55-300mm (all quite heavily cropped) The 300mm prime will come into it's own shooting at f4 or with a teleconverter though whereas the with the 55-300mm you have the flexibil...
Posted by Mike-P on 24/10/2012 - 14:09
k7 noise
I went from a K200D to a K7. I didn't really notice it being noisier at base ISO- I was more impressed with how much better it was at high ISO: usable ISO1600 - wow! (Seems rather quaint now!) The low ISO images (ISO400 and lower) do, however, have a bit more grain to them. You can either eradica...
Posted by Pentaxophile on 24/10/2012 - 22:59
k7 noise
The K-20/K-7 had the first of the "new" CMOS sensors as the market turned its back on CCD. I was at first was disappointed with the noise levels on my K-7, but you learn to overcome it first by adjusting the camera to try to use the lowest ISO you can, I always start with 100 and work my way up fro...
Posted by SteveEveritt on 25/10/2012 - 18:47
Sticky aperture?
Hi All So, I just purchased a long wanted lens, the F 100 f2.8 macro. The price was good and the seller assured me it was ok. But I suspect iit is not. It seems to be shooting wide open only. When choosing a smaller aperture either manually on the aperture ring or in the AV mode it is not stoppi...
Posted by RyanK on 24/10/2012 - 22:07
Sticky aperture?
If you are using the lens with the aperture ring on the 'A' setting, it should stop down OK. If you are using the aperture ring to set an aperture and you are using a Pentax DSLR you'll need to change a menu setting to "Permit use of aperture ring". You'll find the setting in the custom menu some...
Posted by Mannesty on 24/10/2012 - 22:17
Sticky aperture?
It's possible it may have been dis-assembled and put back together not quite correctly. This is pretty common, especially with lenses bought on ebay. Unless you are prepared and able to take it to bits, I don't know whether you'll ever find out what's wrong with it. Either this, or pay someone ...
Posted by davidstorm on 24/10/2012 - 22:20
Sticky aperture?
Thank you for your comments/advice. I had a good talk with the seller. He would take it back, No questions asked, but we agreed upon a very reduced price. I believe I can find good use for it shooting wide open. IQ at f2.8 is quite stellar imho. Maybe at some point I will try to clean the apertur...
Posted by RyanK on 28/10/2012 - 09:36
RAW CONUNDRUM
Evening all... Can I run this one by your folks. Ive only started using RAW files over the last few weeks. But only today did I notice that I might not!!! When I am finished editing my photos in Lightroom 3 (DNG FILES BY THE WAY) and export them into a folder, when I go to view them and ch...
Posted by QuestionableCarrot on 30/10/2012 - 18:51
RAW CONUNDRUM
DNG should be fine with LR3, not sure what's happening there! What should happen is this. You put your RAW files in a folder, and add that folder to lightroom's catalogue / library. (Click 'folders' and select 'add folder' and then navigate to and select the source folder). This will import the f...
Posted by Pentaxophile on 30/10/2012 - 23:15
