Search results for 'back focus' - page 2116
Af fine tuning on Pentax K-r
Not convinced yet ,but i have an incling that i might have a focusing issue . Has anyone had to fine tune the focus on the K-r ,if so would you mind to enlighten me on how to proceed . Had a wee look on Youtube to no avail . Sean
Posted by melness on 17/08/2014 - 11:53
Using a Flucard for lens AF adjustment
Read this elsewhere; Using a Flucard for lens calibration. I discovered that it is very useful. First setup your calibration device. I used a tape measure and a brightly printed cup. The tripod was set at about 30 degrees, close to the minimum focus distance for the lens. Establis...
Posted by JohnX on 25/08/2014 - 10:32
Sigma 150-500 DG HSM OS - slow & sticky?
Update Well, I took in last Friday and they suspected a faulty motor - so I left it with them. One of their technicians looked at it and phoned me twice during the week, and the gist of that was they had tried it on several Pentax bodies, including a K-30 and (I think) a K-5 - and it was quic...
Posted by jeallen01 on 05/09/2014 - 12:17
Pentax Kr-16-45 f4
Hi Sean, Like Andrew my default aperture would be probably F8. I do stop down further if directly into the sun. If the intention is greater depth of field two things give you that wider lens and yes stopping down. Depth of field tables are good to help understand more but at F8 at say 5 metres...
Posted by wvbarnes on 29/08/2014 - 20:13
Pentax Kr-16-45 f4
Sean, This was taken with my K-r and the 16-45 lens. f/8, 1/50th sec, ISO 200, 31mm focal length. Do you think this is any better than your camera/lens? As Bill says perhaps your depth of field is a bit out? If your focus position is too close then you will not get full depth of...
Posted by andymat on 30/08/2014 - 11:32
Pentax Kr-16-45 f4
Sean, This was taken with my K-r and the 16-45 lens. f/8, 1/50th sec, ISO 200, 31mm focal length. Do you think this is any better than your camera/lens? As Bill says perhaps your depth of field is a bit out? If your focus position is too close then you will not get full depth of...
Posted by melness on 30/08/2014 - 19:56
Pentax Kr-16-45 f4
Sean, A very good question. I usually have the autofocus setting at 11 selectable points so I can set the position in the view finder. The aim for this picture was to use the bridge to frame the view through the arch, so I suspect it was set to focus in the middle although I am not definitely sur...
Posted by andymat on 30/08/2014 - 23:47
Pentax Kr-16-45 f4
Hi Andy , Thanks for the advice ,my focus was on the foreground ,this is the part of photography i struggle with also getting a good depth depth of field and how to achieve/understanding it even :D Thanks Sean
Posted by melness on 10/09/2014 - 20:36
Pentax lens repairs?
You might get away with it. The best thing to do is make sure it's as clean as possible. About the best lens cleaner you can get is ROR available from many sources, but the distributor seems the cheapest and they are an excellent professional firm to deal with. http://www.newprouk.co.uk/ROR-l...
Posted by Algernon on 03/09/2014 - 19:07
Pentax lens repairs?
The NewPro cleaner arrived very quickly but didn't make any improvement, highlighted the problem bits more though! Got a completely unhelpful generic reply from JPS saying send it in and we'll check but it will cost you £24 if you refuse the repair. A nice reply from Alan Marlow, he's on holiday ...
Posted by Steep on 05/09/2014 - 10:59
Pentax lens repairs?
Asahi accepted my DA*16-50 for repair, though based on my experience so far I rather wish they hadn't. It needed a new SDM motor. I finally collected it today, after a seven month wait, only to find that it is no better than it was before - it still focuses slowly and quite often will not lock focus...
Posted by smudge on 05/09/2014 - 18:25
Pentax lens repairs?
Thread revival time! After a few false starts and a very long wait for Pentax to send a new front element my lens is repaired (it's like new!) I want to thank Alan Marlow for the work done and the very friendly, professional attitude - top bloke. From me sending the lens to getting it back in my...
Posted by Steep on 14/02/2015 - 13:13
Pentax lens repairs?
For the record my experience with JPS wasn't stellar but may have turned out ok, time will tell. First of all the first repair of the SDM motor in my DA* 300 took a couple of months, Then after two weeks both the AF and the manual focus stopped completely. I suspect it may have been reassembled poo...
Posted by dcweather on 16/02/2015 - 23:59
FA31mm and K-5
So, on a recent trip to bulgaria, somewhat halfway through my 31mm, has refused to focus to infinity on the K5. But at closer distances it would still autofocus. In the end I have swapped to manual focus, but seems like, even the pictures that I used manual focus on were a bit out of focus. ...
Posted by chaude on 05/09/2014 - 20:22
K50 on Auto goes on movie mode
Sounds like a mode dial issue. You could work the dial back and forth a few times, if that fails try resetting the camera to factory defaults.
Posted by SteveLedger on 19/09/2014 - 22:23
K50 on Auto goes on movie mode
Hi Fritzthedog if I put the setting to movie mode it works as it should. When I change it back to Auto it stays on Movie. Thanks for your response.
Posted by Johnlw on 20/09/2014 - 12:24
speck in viewfinder
Hi all. I have a k5 and noticed tonight when looking through the viewfinder, there is a small speck just above the centre focus circle. I removed the lens and could still see it, so not on the lens, and it doesnt show on images, so not on the sensor. Ive cleaned the rear eyepiece but its still ther...
Posted by scarr1 on 24/09/2014 - 00:02
speck in viewfinder
Small marks on focus screens and dust inside the prism box are common and do not cause any issues. They can be cleaned but it is a risky business unless done professionally - I speak from experience! My K5 and K5IIs have both got marks on the screens. I am so used to them I do not even notice ...
Posted by fritzthedog on 24/09/2014 - 07:59
speck in viewfinder
try GENTLY using something like a 'Rocket Blower' If you do, do some hard 'puffs' before you use it. I once used a Rocket Blower to clear some gunk off the focus screen and ended up blowing more onto the screen! I once found a small insect in the prism box of my ME Super! Happy days :D I had a l...
Posted by MattMatic on 24/09/2014 - 08:44
Viewfinder magnification?
Having checked an OM40 against a K5 I can see the difference in size of the mirror and focus screens :oops: But is that increase in image size not "compressed" to fit the same size oblong of the viewfinder window
Posted by bforbes on 05/10/2014 - 23:49
