Search results for 'sensor cleaning' - page 544
On-off switch problem on Pentax K-3 II
I had the same issue - it was some kind of dried oil or gel, quite difficult to see clearly. Some contact cleaner and a q-tip and some careful cleaning dealt with it.
Posted by smc on 28/10/2020 - 15:07
The Pentax K-7 Designers' Story (article, 2009)
On May 20, 2009, Pentax announced the K-7 (available from July 2009) as a replacement for the K20D. It introduced an updated version of the Samsung CMOS sensor, but with an entirely new compact design. Notable new features included full metal body construction, a pentaprism viewfinder covering 100% ...
Posted by KeldMikkelsen on 06/11/2020 - 17:27
The Pentax K-7 Designers' Story (article, 2009)
The K-7 marks the beginning of the superb ergonomics that later went into the K-5, K-3 and others but was sadly marred by what was probably the worst sensor ever to be used in a Pentax DSLR. I suspect Pentax lost a lot of users due to the choice to use that sensor instead of a superior one from ano...
Posted by Jonathan-Mac on 07/11/2020 - 15:02
The Pentax K-7 Designers' Story (article, 2009)
I really enjoyed reading all the above, but I jumped straight from a GX10/K10D to a K-5 because of what I read about the (almost?) same Samsung sensor in the K7 as was used in the K-20. Since then, it's been a very easy "user-progression" to the K-3, and now to the K-70 (K-1 is just too large & h...
Posted by jeallen01 on 07/11/2020 - 20:46
The Pentax K-7 Designers' Story (article, 2009)
I purchased a secondhand K-7. A few years ago. And I have never regretted it. It still gets a look out every now and again. Even though I now own a K-5 and a K-1. Great camera to purchase if your on a tight budget. Has it's limitations yes, as the digital world has been fast paced. But no real neg...
Posted by kingfisher on 16/11/2020 - 07:26
KS2 dark images with Live View
There are various things you can do. First off, wipe gently the contacts on the back of the lens and on the camera mount using a dry, soft, lint-free cloth. A microfibre lens cleaning cloth is ideal. Then I would do a factory reset of all the settings - you'll find the reset button in the menus. ...
Posted by johnriley on 14/12/2020 - 18:09
K3 iii
I am also guessing this is why they went for a fixed screen. I love the articulating screen on my K1, but how much more convenient would it be if your smartphone becomes the rear screen ? None whatsoever unless you have 2 pairs of hands. If you need an overhead shot on the K-1 you tilt the screen...
Posted by Jonathan-Mac on 29/12/2020 - 08:45
KP vs K1 Image Quality
They're both very close in terms of IQ for most uses in my opinion. I kept the K-1 and sold the KP because I have a number of FF lenses and I wanted to keep the slightly larger FOV available using the K-1 sensor. The KP is very good at being a compact camera with high end features (in Pentax term...
Posted by HarisF1 on 29/01/2021 - 22:08
KP vs K1 Image Quality
It's not just about resolution, it's also about fine gradation, noise and the depth of field. These may be subtle effects but they may be important to some photographers. There might be anargument for the K-1 for landscape and portrait and the KP for sports and wildlife. If size of camera and lenses...
Posted by davidstorm on 29/01/2021 - 23:14
KP vs K1 Image Quality
From a purely technical aspect some figures: Sensor Area of K1 is 862mm2, nominal M.P 36.4, pixel density 4.24MP per cm2 Sensor Area of K-3II is 371mm2, nominal M.P 24, pixel density 6.66MP per cm2.
Posted by 1stEverPentax on 30/01/2021 - 11:53
KP vs K1 Image Quality
From a purely technical aspect some figures: Sensor Area of K1 is 862mm2, nominal M.P 36.4, pixel density 4.24MP per cm2 Sensor Area of K-3II is 371mm2, nominal M.P 24, pixel density 6.66MP per cm2. What effect(s) can one expect these figures to have on relative image quality? Philip
Posted by MrB on 30/01/2021 - 13:23
KP vs K1 Image Quality
From a purely technical aspect some figures: Sensor Area of K1 is 862mm2, nominal M.P 36.4, pixel density 4.24MP per cm2 Sensor Area of K-3II is 371mm2, nominal M.P 24, pixel density 6.66MP per cm2. What effect(s) can one expect these figures to have on relative image quality? Philip A...
Posted by 1stEverPentax on 30/01/2021 - 22:42
KP vs K1 Image Quality
David I currently have both. I have not done any straight comparison shot but feel Image quality wise ithe K1 has a slight adavantage but do not feel the difference is significant. What i feel does work in the K1's advantage is how the focus falls of as a result of larger sensor, on the other han...
Posted by punkrockemo on 31/01/2021 - 17:46
KP vs K1 Image Quality
Thanks for all the input so far, it's been helpful As an aside, now I have the K1, I'm on the lookout for a wide angle lens that can do justice to the K1's sensor. When I mean wide angle, I mean a prime lens and it will be a vintage one as I can't afford a DFA lens. So, I'm looking for suggesti...
Posted by davidstorm on 31/01/2021 - 22:25
KP vs K1 Image Quality
Hi All A quick update on my search for lenses to use with the K1. Whilst I'm looking for some nice, cheap primes that can do the K1's sensor justice, I also need some travel / walk-around zooms. I had already purchased the DFA 28-105, with a view to testing this against some other lenses to see...
Posted by davidstorm on 04/02/2021 - 13:12
K-70 LCD Display
Hi. I'm back on the forum after a delay of many years, having just upgraded from a 12-year old K10D to a K-70. Loving the extra detail a 24Mp sensor gives me over the previous 10Mp! However, I'm baffled by the apparent lack of a simple way to turn off (or on) the rear LCD monitor; I want it to co...
Posted by ak825989 on 14/03/2021 - 14:30
Pentax K-3 Mark III now available to pre-order!
Be interested to see how they can claim it's 2 stops better than the K-1 on a crop sensor (unless they are using the accelerator to do some heavy in camera processing).
Posted by Mike-P on 03/04/2021 - 10:12
K3iii a few initial thoughts
AF accuracy seems spot on even in poor light. AF speed is as good as my lenses will allow. AF hunting is negligible to non existent. I see from your Flickr you have the 16-50mm & 50-135mm, how do you find the autofocus speed on them as I always thought they were slow to get where they needed to on p...
Posted by Tyr on 27/04/2021 - 21:35
K3iii a few initial thoughts
I had mine delivered this morning, I'll be starting my 2021 racing seasons photographic duties at a 'behind closed doors' banger/stock car meeting at the weekend. It'll be a good test of the auto focus while tracking fast moving cars. I've noticed that Pentax have removed the facility to check if...
Posted by malvern_man on 28/04/2021 - 18:29
K3iii a few initial thoughts
.........I've noticed that Pentax have removed the facility to check if there's any dust on the sensor, unless I've missed it in the settings, I always felt that this was quite a useful feature. You could probably achieve the same results by taking a photo of a white wall/ceiling/card with the apert...
Posted by LennyBloke on 28/04/2021 - 18:45
