Search results for 'back focus' - page 1909
Tilt/Shift in the bluebell wood
I was reminded by Womble's recent post that I haven't used the tilt part of my Samyang 24mm TS lens for ages, so I went down to the woods to give it another go. A tripod is a must as you have to tweak the camera angle and degree of tilt to frame up, the aim is to turn (in this case) the focal plane ...
Posted by RobL on 02/05/2022 - 11:30
Tilt/Shift in the bluebell wood
Impressive and beautiful :). Almost makes me want to get a T&S lens to experiment with. Then I remember all the other photographic projects at the back of my mind, most of which haven't even been started... A wild thought - is there a way of using tilt to increase DoF for macro? Extension tubes...
Posted by Lubbyman on 03/05/2022 - 09:19
Tilt/Shift in the bluebell wood
Hi Steve, you are not increasing depth of field but simply changing the focal plane: in normal situations the focal plane is parallel to the camera sensor so that things nearer and further away are out of focus, by tilting the focal plane that depth of field stays the same and instead items above an...
Posted by RobL on 03/05/2022 - 10:06
Tilt/Shift in the bluebell wood
Thanks, Rob. I'd almost come to the same conclusion myself re macro but thought it worth asking in case I was missing something obvious. What made me think of the question was the last picture in your set, wondering whether a bit of tilt would have got the full length of the stem in focus as well as...
Posted by Lubbyman on 03/05/2022 - 11:01
Tilt/Shift in the bluebell wood
Harder with a tilt-shift lens but with large format where "macro" is provided via the bellows, you can use tilt to alter the plane of focus in a useful way. Product photography where you wanted the whole of your packet of cornflakes to be in focus used to be done with large format. In LF, you ca...
Posted by womble on 29/05/2022 - 14:29
Tilt/Shift in the bluebell wood
Basically Kris the TS lens is doing the same as your bellows-type large format, moving and angling the lens relative to the sensor/film plane. I am always curious how the bellows type works as the image circle from a TS lens is larger than a conventional lens so that the sensor stays within the circ...
Posted by RobL on 29/05/2022 - 20:00
K-3 (III) arrived ....
K-3 (III) just arrived so first thing was to check the body over, take a picture to check the shutter count and then update the firmware ... this one is on 1.01 11 Firmware updates in 12 months ... I have had every top end DSLR Pentax have made and I don't think I have had that many in total for ...
Posted by Mike-P on 24/05/2022 - 15:07
K-3 (III) arrived ....
It does birds it does planes, it even does Shinkansen trains. You pick some AF points stick em on the subject and it nails it. Can you blindly wave it at the subject and it hits it, no! Does it have Mosquito eyelash focus mode, no! Does it have a billion AF points with coal cellar eV boost, no...
Posted by jules on 28/05/2022 - 15:42
K-3 (III) arrived ....
I've removed the contentious link just in case, if it needs to go back in some revised form then by all means try again!
Posted by johnriley on 28/05/2022 - 22:08
K-3 (III) arrived ....
Born once was enough no wish to come back. Never smoked, the link I provided was for a guy photographing shinkansen at 200mph if it's wrong I'm sorry but anyway it works, the camera just works I love it. I've no idea how to take down the links my degree in computer science does not stretch to Pe...
Posted by jules on 28/05/2022 - 16:49
Simple bodge to use IR remote from behind camera
My K-S2 has its sensor for infrared remote control at the front, like many other recent Pentax DSLRs . Annoyingly one needs to have the IR remote in front of the camera to get it to work. The camera will just about pick up the IR signal up to about 90 degrees on the 'starboard' side. A big lens will...
Posted by OldTaffy on 29/05/2022 - 13:09
Photography Online
I don’t know if anyone else is familiar with this YouTube channel from the Isle of Skye but I have had a bit of a fall-out with them. They are running an occasional test to find the sharpest camera, starting with the Canon EOS 5 mark IV; the second body they compared was the Pentax K1 mark II using ...
Posted by RobL on 04/06/2022 - 13:37
Menus
JohnX, I was on a multi-exposure course with Valda Bailey (I actually thought it was a landscape session!) when going around the small group she said so-in-so’s Sony needed a special app downloaded, a Canon did up to 8 and Nikon up to 10 blended exposures. Their smug looks soon changed when she then...
Posted by RobL on 15/07/2022 - 12:39
Odd Live View
Agree with what you say about electronic interpretation of what the sensor is seeing and the difference between 'A' and non-'A' lenses. And while I don't have a manual, non-'A' setting lens, it dawned on me that I do have an adapter for reverse mounting a lens on the camera, which eliminates all ele...
Posted by Lubbyman on 18/08/2022 - 10:42
Astrotracers
Great.... more effing expense :lol::lol::lol: But a lot cheaper than the James Webb thingy that NASA sent a squillion miles to do astrophotography. Mind you, that thing has been converted for IR... :wink::twisted: And unlike NASA, when you've finished using it you can sell it on and get some of y...
Posted by Lubbyman on 03/09/2022 - 16:29
K mount mounting ring
Hi All.. Im looking for ideas or inspiration. I am currently using a K5II. But after many years of perfect usage. I now cant get it to recognise most of my lenses. Pentax or third party. I suspect a misalignment of the mounting ring. As after trying to attach many lenses many times, and Just gettin...
Posted by stub on 11/09/2022 - 19:03
Image quality on my new (to me) K-1
Nor me - but I recently bought a second one ( SWMBO hasn't noticed yet ). But don't go mad buying the expensive lenses - there are dozens of cheap vintage ones out there that are fantastic provided you are comfortable with manual focus. I get wonderful results from 1920s glass !
Posted by davidwozhere on 21/09/2022 - 01:53
Image quality on my new (to me) K-1
Welcome to full-frame :) I have found that using old lenses doesn't detract from the magic offered by the great sensors available today. If you can focus them properly then just let the camera do it's part.
Posted by Jonathan-Mac on 22/09/2022 - 09:55
Upgrading from K5 II - difference between K-3 range & price difference?
Thanks for the replies. The K3iii is outside of budget range. Main reason for upgrade would be- - it's newer so it has to be better, doesn't it? - possibly less noise as high ISO in low light (based on replies, the K5ii seems better for this situation) - quicker focus Cheers, Pa.
Posted by dinneenp on 21/09/2022 - 19:44
Upgrading from K5 II - difference between K-3 range & price difference?
had K5iis and K3ii at same time and found k5 quicker to lock focus in low light tested with same lenses i had at the time. Sold K3ii to go to M4/3rds after a while regretted it and went back to K5iis as could not find K3ii 2nd hand .The k5 i have does all i need it to do, did miss built in flash on...
Posted by redbusa99 on 22/09/2022 - 14:58
