Search results for 'back focus' - page 1617
Anyone using Gimp?
A good argument to stick with GIMP then - no aggressive pressure selling! Thanks I agree no hard sell with Gimp, but I must say I haven't had any from Coral paintshope pro X12 either in fact not had an upgrade for a long time from them. Cheers Trixie It's a matter of being aware where you have saved...
Posted by trixie on 10/07/2011 - 17:03
Seculine Twin1 R3 UT
I acted on both comments The website did give some idea of distance etc but I find I have to set the focus to get the remote to trigger--
Posted by BOBMACKIE on 10/07/2011 - 19:27
Aerial photography on a budget lens suggestions
Here's two I just snapped off out the back. One at each end of the range. See also the CA on the 4WD http://dl.dropbox.com/u/250070/Photos/istDS/IMGP1008.JPG http://dl.dropbox.com/u/250070/Photos/istDS/IMGP1013.JPG Bear in mind the lens is mounted to the *istDS body at the moment, the K7...
Posted by SteveLedger on 14/07/2011 - 00:19
Aerial photography on a budget lens suggestions
Here's two I just snapped off out the back. One at each end of the range. See also the CA on the 4WD http://dl.dropbox.com/u/250070/Photos/istDS/IMGP1008.JPG http://dl.dropbox.com/u/250070/Photos/istDS/IMGP1013.JPG Bear in mind the lens is mounted to the *istDS body at the moment, the K7...
Posted by Smeggypants on 14/07/2011 - 00:45
Aerial photography on a budget lens suggestions
I think we're lucky here in the uk to have that option with SRS. However buying a lens second hand and selling it later works out pretty cost effective or even profitable if you're canny! But the tamron 70-300 would be my pick of the budget options if a manual focus prime is out of the question at a...
Posted by Pentaxophile on 14/07/2011 - 13:35
Aerial photography on a budget lens suggestions
The DA 55-300 is a nice lens but can occasionally be quite slow to focus, especially if you are trying to hit moving targets at a distance... which is exactly what an airshow will involve. You might be better off manually focusing because it's likely that most of your targets will be close to the in...
Posted by MarkTaylor on 14/07/2011 - 14:25
Aerial photography on a budget lens suggestions
I have the DA55-300 and agree with what Mark said that it can occasionally be quite slow to focus. I used it at Farnborough last year and it wasn't quite long enough. After that I got a second hand Sigma 170-500 lens and I find I've now got the distance I want and the lens focuses alot quic...
Posted by GDN on 14/07/2011 - 22:08
Aerial photography on a budget lens suggestions
If you want to do this sort of thing a lot, why not treat yourself to a nice 300mm Prime? I think a 300mm prime would be almost useless at an airshow. Camera-to-subject distances change so fast, and so continuously, that the zoom is an absolute must. I had a 400mm prime on a second K10D body...
Posted by ChrisA on 15/07/2011 - 13:48
Aerial photography on a budget lens suggestions
If you want to do this sort of thing a lot, why not treat yourself to a nice 300mm Prime? I think a 300mm prime would be almost useless at an airshow. Camera-to-subject distances change so fast, and so continuously, that the zoom is an absolute must. I had a 400mm prime on a second K10D body...
Posted by jeallen01 on 15/07/2011 - 17:06
Aerial photography on a budget lens suggestions
Pentax 55-300mm ... is very sharp, but it's not the quickest focuser. People do say this, but it's not my experience if you handle it right. It has a long focus throw, certainly, that is, there's a lot of rotation for the focus ring to do to get from one end of the focus range to the other. An...
Posted by ChrisA on 15/07/2011 - 17:32
Aerial photography on a budget lens suggestions
Another couple of advantages of a 70-200mm F2.8: - It's more than a full F-stop faster than the 55-300mm at all apertures and still at least a 1/2 stop faster when used with a 1.4xTC - that helps a lot with the auto-focus on either my old GX10 (K10D) or the newer K5. - It can be used for a lot of ...
Posted by jeallen01 on 15/07/2011 - 21:25
Aerial photography on a budget lens suggestions
I used my 80-320 at the East Staffs Air show a few years back, it was a bit of a learning experience through the afternoon & I have had good results (air shows) with my 75-150mm f4 on 35mm slide back in the early 90's. Here is a link to the East Staffs set, the 90's stuff isn't scanned yet, lol: ...
Posted by SteveA on 16/07/2011 - 12:37
KR Live veiw v Through the lens
I assume it's down to focus though. Live view is very accurate and does not have focus errors like front or back focus misalignment.
Posted by Anvh on 17/07/2011 - 11:02
KR Live veiw v Through the lens
At that sort of distance DOF would more than cover any but the grossest focusing errors, so that shouldn't be an issue. The DOF also get smaller at these short distances so focussing get more critical, so any deviations in focus will be shown quite pronounced. There is a simple way to test this. ...
Posted by Anvh on 17/07/2011 - 16:14
KR Live veiw v Through the lens
If it helps the clock was taken about 3 foot focus on the ctr winder. The garden photo focus point was on the left pillar at the front edge of the capping stone about 10 feet away. Regards Ian
Posted by philstaff on 17/07/2011 - 16:22
KR Live veiw v Through the lens
The garden picture now makes more sense. The top image is focused on the spot you indicate, the second one is perhaps focused elsewhere as the Live View system takes a wider view of things when focusing. I was puzzled that the background focus varied, but it may make sense after all. I would sugg...
Posted by johnriley on 17/07/2011 - 16:33
KR Live veiw v Through the lens
Looking at the two above I'd say that the viewfinder ones is focussed on the wall pillar. The LV one appears to be focussed further out - the pot near the middle is sharper than in no. 1. It depends on what was intended to be in focus - the eye might choose one thing and the AF or LiveView another...
Posted by karma mechanic on 17/07/2011 - 16:36
KR Live veiw v Through the lens
I will take the garden photo again and make sure both live veiw and auto focus are on exactly the same point but Im pretty sure they were any way . Regards
Posted by philstaff on 17/07/2011 - 16:40
KR Live veiw v Through the lens
If it helps the clock was taken about 3 foot focus on the ctr winder. The garden photo focus point was on the left pillar at the front edge of the capping stone about 10 feet away. Regards Ian It's the magnification that counts not the distance when it comes to DOF. Have you ever checked if you...
Posted by Anvh on 17/07/2011 - 16:41
KR Live veiw v Through the lens
Have you ever checked if your focus is spot on when using the viewfinder? Hi Stefan what I normaly do is press the shutter button half way down a few times and wait for the bleep to make sure the focus does not vary, ie the lens does not shift from the point of origanal focus if that makes sence ...
Posted by philstaff on 17/07/2011 - 17:02
