Search results for 'sensor cleaning' - page 630
K3 Mk3 Histogram
In a word, no. That's because the elements that appear in the viewfinder are provided by an overlaid transparent LCD layer with pre-formed elements (for focus points etc.) that are illuminated as and when needed. A histogram is only available in liveview which, of course, uses the back display wi...
Posted by Lubbyman on 22/10/2023 - 14:10
K3 Mk3 Histogram
In a word, no. That's because the elements that appear in the viewfinder are provided by an overlaid transparent LCD layer with pre-formed elements (for focus points etc.) that are illuminated as and when needed. A histogram is only available in liveview which, of course, uses the back display wi...
Posted by bforbes on 22/10/2023 - 14:20
K3 Mk3 Histogram
In a word, no. That's because the elements that appear in the viewfinder are provided by an overlaid transparent LCD layer with pre-formed elements (for focus points etc.) that are illuminated as and when needed. A histogram is only available in liveview which, of course, uses the back display wi...
Posted by rscoote on 22/10/2023 - 15:11
Pentax K-3 iii - Can it really be this noisy?
In case you haven't already seen it, here's a link to the 'other forum' where the K3 iii's noise is reviewed with examples . As far as RAW files are concerned it concludes that "Up to ISO 12800, it is hard to notice any noise contribution". Perhaps their subject was more forgiving than a blue sky. ...
Posted by Lubbyman on 27/01/2024 - 00:03
Pentax K-3 iii - Can it really be this noisy?
This is a very interesting topic which I'm sure gets very technical very quickly. Just a quick look at your full image it seems in DxO seems to show the noise is dominated by Luminance Noise not Chroma Noise. I guess that's not surprising as the blue sky is being chiefly captured by the 'blue' s...
Posted by MikeInDevon on 27/01/2024 - 22:49
Pentax K-3 iii - Can it really be this noisy?
Soo.... I took a couple of images of a white surface (white plastic window frame), one with K3iii the other with K20D (yeah, vintage!), both at ISO 3200, and compared DNGs with the DNG of the aircraft and blue sky (thanks, tigershoot :grin: ). The comparison was done with Affinity Photo v1 (I don't ...
Posted by Lubbyman on 28/01/2024 - 14:50
Dust spots and bug
Hi just joined When looking through the view finder I can see a little bug and when I took a photo of the sky to check I can see dust spots and one of the bugs legs i think Now to my question how can I tell where it is on my Pentax k20d It could be on the sensor on the mirror or up in the...
Posted by Astraman1 on 21/02/2024 - 16:12
Dust spots and bug
Hi Astraman and welcome to the site. I think this could be potentially two issues (although please read on to the end), if something is visible while you optically look through the viewfinder, the bug (or particle) could be between the pentaprism and focus screen, laid on the focus screen or on t...
Posted by rick on 21/02/2024 - 18:52
Dust spots and bug
If you can see dust spots and a bugs leg on an image you have taken then these are not what you are seeing through the viewfinder. You may well have something on the focus screen or in the viewfinder or on the mirror (as Rick has suggested) but the bugs leg is more than likely a hair on the sensor, ...
Posted by LennyBloke on 21/02/2024 - 22:10
Dust spots and bug
You can check what dust (if any) is on the sensor by using the Dust Alert function. It's described in the user manual, section 'Cleaning the CMOS Sensor' starting page 252. It's easy to do and will show where dust is on the sensor. Removing dust with a blower is also described and is also easy t...
Posted by Lubbyman on 22/02/2024 - 11:24
16-85mm lens gone wrong
I had the 16-85mm for a while, didn't face the issue, however... Tipping you've tried cleaning the contacts on both lens and camera? Does it manually focus to infinity? (far objects)
Posted by rick on 23/05/2024 - 10:32
16-85mm lens gone wrong
Thanks Rick. I'll try cleaning the contacts when I get back home, but my 55-300 is focussing fine so I think the body is ok, a K3
Posted by RayW on 23/05/2024 - 10:39
16-85mm lens gone wrong
That's positive news regarding the K-3 & 55-300mm, so unlikely to be the contacts, however worth a quick try of cleaning them. Reading around other sites, it seems that the 16-85mm can have various focusing issues, from jumping around after hitting focus or failing completely due to lose screws, ...
Posted by rick on 23/05/2024 - 11:21
DA 55-300mm will not focus on K70 body with any settings
It may be worth cleaning the contacts on both the lens and body. Do you have another body you can test the lens on?
Posted by smc on 02/07/2026 - 17:10
Do you have a question for the Pentax team of experts?
Why is there no possibility of user calibration of the horizon/level sensor and correction ? Surely this is just a software fiddle factor somewhere.
Posted by kh1234567890 on 12/06/2014 - 14:52
Do you have a question for the Pentax team of experts?
Hello, When you came up with the k3 why was it decided to go upto 24Mp with the sensor was 20Mp not an option? was it a numbers sales pitch decision?
Posted by InFESTation on 21/06/2014 - 22:21
Do you have a question for the Pentax team of experts?
See here: http://www.srsmicrosystems.co.uk/cameras/interchangable-lens-cameras/pentax-dslr-cameras.html (Other camera shops are available) the 645 series are Medium Format The K1 is the only camera with a sensor of equivqlent size of 35mm. The remainder are APS-C like the former Pentax K2...
Posted by pgweber on 11/03/2017 - 08:29
Compact Digicam - Optio WP or WPi
Hi I read the megapixel thread with great interest as I am about to take the plunge into digital photography. I have not seen the above cameras discussed on the forum so I hope someone can comment on them. I do a lot of mountain walking, often in awful weather, and although I have an "expendab...
Posted by Anonymous on 07/11/2005 - 19:43
Compact Digicam - Optio WP or WPi
No shame at all, the Pentax compacts are excellent and we get good results in A3 prints from a 5MP Optio S5i. There are even better results to be had from the 750Z that I also use, and in fact I have been very, very impressed by its quality. But there is a catch. The smaller sensor is definitely ...
Posted by johnriley on 07/11/2005 - 20:10
Compact Digicam - Optio WP or WPi
My experience with taking the plunge to digital was this: We went with canon g5. why? it had the focal lengths we used most, no worries about dust on sensor, we could always shoot at iso 50 because we were using studio lights. In other words, we found what worked for us and never regretted it. We...
Posted by Anonymous on 08/11/2005 - 20:50
