Search results for 'sensor cleaning' - page 542
Pentaxian with K-X wins Flickr 2019 Your Best Shots competition!
Congratulations to Robert Span on : Taken with the K-1 and SMC Pentax-A 70-201mm f/4. You've got to like his self-effacing comment: “I’m a 51-year-old amateur photographer based in Ontario, Canada. I’ve always been a Pentax user and have a keen interest in using their older CCD-sensor DSLR bod...
Posted by ronniemac on 26/01/2020 - 14:51
In what order..........?
I've asked this before, but I don't remember the answer...... If you have a lens of F/L "x", if you put X mm of tubes behind it, you get 1:1 on the sensor. 50mm of ext. behind a 50mm F/L lens gives 1:1, etc., etc. My 100mm D FA Macro gives me 1:1 anyway. What does it give me if I use 100mm...
Posted by coker on 06/02/2020 - 18:49
In what order..........?
Ok I'll butt in here too, I have absolutely no formulas to back up my experience, only my results, and for me. While adding tubes certainly does allow closer focusing, it also increases the magnification, Much the same as you would when using a handheld magnifying glass, by moving it closer ...
Posted by derek897 on 06/02/2020 - 23:15
In what order..........?
My tuppence worth.... Isn't it Euros in Wicklow? Or do you know something that hasn't hit the headlines yet??? :wink: You're absolutely right, of course, about magnification and closer focusing. The closer the subject is to the lens, the bigger the image and thus magnification. When the subject i...
Posted by Lubbyman on 07/02/2020 - 13:34
In what order..........?
My tuppence worth.... Isn't it Euros in Wicklow? Or do you know something that hasn't hit the headlines yet??? :wink: You're absolutely right, of course, about magnification and closer focusing. The closer the subject is to the lens, the bigger the image and thus magnification. When the subject i...
Posted by derek897 on 07/02/2020 - 14:53
K1 Astrotracer Query
Might explain my startrails at 20 sec on 20mm :-) The astrotracer needs to know where you are in the world so it can move the sensor correctly. I am no expert but I think star trails will still be visible at the edges with very wide lenses.
Posted by pschlute on 25/06/2020 - 10:01
New APS-C camera soon - images.
The recent Pentax DSLRs have articulated screens, so it would seem ludicrous not to include the feature in a new flagship body. After the techno-gymnastics of the K-1's screen, it wouldn't be unreasonable to consider that the Ricoh-Pentax engineers might have produced a neat and ingenious flush-moun...
Posted by kea828 on 10/03/2020 - 08:07
New APS-C camera soon - images.
The idea did occur to me. I hadn't notced the unmarked button on the left. Very neat if it is. I note the sensor below the eye piece which presumably switches off the screen if your eye is at the viewfinder. Hopefully that will improve battery life. Edit: P.S. The unmarked button may be...
Posted by richandfleur on 10/03/2020 - 12:26
New APS-C camera soon - images.
I hope they don't call it the KA. Reminds me of those cut-down shopping trolleys that Ford produced a while ago with the clever sound bite, "Get into the Ka!" As for a sensor underneath the viewfinder, that would be a Godsend. No matter how often I try to disable the Status Screen on my K1, it alway...
Posted by davidwozhere on 17/04/2020 - 01:07
New APS-C camera soon - images.
I think the Z50 is pitched closer to the D7500, which is newer than the D500. Same sensor but not quite the same AF system IIRC. When I bought my D3 10 years ago I decided to run 2 systems APS-C Pentax (far too much financial and emotional investment) and FF Nikon. I have had my D500 for 3 year...
Posted by ilovesaabs on 17/04/2020 - 09:22
Update on new APS-C apparently
So, three new lenses including the DFA 85 f1.4mm. I guess the new *series DA zoom will be launched with the new camera which now looks like the end of this year. A new 21mm Limited which looks juicy! In talking about the new APS-C body it was as if mirrorless had never happened, concentrating on the...
Posted by RobL on 15/05/2020 - 08:15
Update on new APS-C apparently
The video only highlighted the viewfinder and tracking focus, nothing was said about the rear screen tilting or otherwise, nor the sensor, nor other features. It was to whet the appetite but too soon to give out the full spec.
Posted by RobL on 15/05/2020 - 21:01
Update on new APS-C apparently
A bigger OVF on an APS-C DSLR is a big thing. The main selling point of a DSLR over a mirrorless camera is it's optical viewfinder, but many suffer from being small and dim, especially APS-C. I think it could be a great way for Pentax to stand out from the other remaining DSLR manufacturers. Ot...
Posted by Jonathan-Mac on 13/07/2020 - 12:41
Update on new APS-C apparently
A bigger OVF on an APS-C DSLR is a big thing. The main selling point of a DSLR over a mirrorless camera is it's optical viewfinder, but many suffer from being small and dim, especially APS-C. I think it could be a great way for Pentax to stand out from the other remaining DSLR manufacturers. Ot...
Posted by idontcare on 13/07/2020 - 14:44
K3ii auto focus
I'll give them all a good clean. What is good for cleaning? The batteries are only 2 years old and hold charge brilliantly.
Posted by phillipjclay on 16/05/2020 - 09:56
K3ii auto focus
What is good for cleaning? A contact is just a bit of metal. Try a dry microfibre cloth to start with. For more stubborn muck, anything that will remove greasy deposits (e.g. finger marks), won't damage anything and won't leave a deposit behind (so no household 'clean and shine' products then :wink:...
Posted by Lubbyman on 16/05/2020 - 11:40
K3ii auto focus
A normal pencil rubber is pretty good for cleaning contacts too. It's also worth cleaning the battery contacts as any resistance there can simulate a failing battery.
Posted by JAK on 17/05/2020 - 00:53
K5II issue
It's a long time since I posted here, but after years of sterling service my K5II has recently developed a problem and I was wondering if any of you experts out there can offer any thoughts. I was out with my K5II and DA 16-50 and DA 50-135. I have at times had some issues with slow AF responses...
Posted by IanReigate on 18/07/2020 - 07:56
K5II issue
If the camera is OK with other lenses, then I'd start to look at the two that are affected. Perhaps start with cleaning the electronic contacts on both lenses and the body, then remount firmly, making sure there is good contact between lens and body. That might help cure any intermittent connection....
Posted by johnriley on 18/07/2020 - 09:29
K5II issue
Many thanks for everyone's comments. I like the logic of the SDM connection within the camera, as it explains why the two lenses work with the K5 even though not with my K5II whilst other lenses still work with my K5II. I will try cleaning the relevant contacts in the body and see if that solves i...
Posted by IanReigate on 18/07/2020 - 18:58
