Search results for 'sensor cleaning' - page 478
K5 performance
It didn't give a 22 bit output; the Digital-Analogue converter was overkill as it only output 10 or 12 bit of info to the end user! I think the 22-bit sampling might have just helped get a little more useful info from the sensor! Andy 12 bit and 14 bit RAW Cameras are often advertised as capturi...
Posted by JAK on 06/11/2013 - 22:08
MAWB on the K3
From what understand the sensor on the K3 can read different light sources within the scene and can then work out the correct WB for each different light temp to provide a more accurate WB reading. However, the explaining the science behind how the K3 can do this, I have no idea.
Posted by Fletcher8 on 08/11/2013 - 00:30
MAWB on the K3
From what understand the sensor on the K3 can read different light sources within the scene and can then work out the correct WB for each different light temp to provide a more accurate WB reading. However, the explaining the science behind how the K3 can do this, I have no idea. I was wondering whe...
Posted by DaveKitson on 08/11/2013 - 01:30
K3 resolution
Fantastic! Looks like the K-3 is superb. I wonder with the clout that Ricoh have, that they have got Sony to make a mk2 version of the 24MP sensor. It seems far better than the A77 and D5200...... Or is it just the Pentax processing engine.........:wink:
Posted by Offertonhatter on 10/11/2013 - 20:35
K3 resolution
The lack of AA filter isn't any sort of worry as there is the AA Filter Simulator. I`ll repeat - lack of AA filter is major difference. And I look for effectiveness/flaws, etc To understand what I am talking about, look on neckerchief: Brown color is not dirt, it is RGBG CMOS sensor effect,...
Posted by Vaards on 12/11/2013 - 14:33
K3 resolution
Brown color is not dirt, it is RGBG CMOS sensor effect, when moire makes rainbows and processor makes wrong equations. Is this your own evaluation or is there an article somewhere discussing this 'issue' with this particular image?
Posted by Mannesty on 12/11/2013 - 14:46
K3 resolution
The lack of AA filter isn't any sort of worry as there is the AA Filter Simulator. I`ll repeat - lack of AA filter is major difference. And I look for effectiveness/flaws, etc To understand what I am talking about, look on neckerchief: Brown color is not dirt, it is RGBG CMOS sensor effect,...
Posted by JAK on 12/11/2013 - 15:02
K3 resolution
I think the colour artefacts on the penguins head are noise, in LR5 I had the colour noise setting at the default 25, if I bump it up to 50 the colour artefacts dissappear, so probably noise not moire NR algorithms don't just affect noise, they also affect wanted parts of the signal so you can't aut...
Posted by Smeggypants on 13/11/2013 - 23:04
A K3 test pic - not for critique!
I don't think there is any doubt about the clarity on offer John, due to the 24mp sensor and no AA filter. The jury's out on the noise levels and dynamic range, but I've just picked up a K-3 today and first impressions are very positive. Cheers David
Posted by davidstorm on 11/11/2013 - 23:27
A K3 test pic - not for critique!
Thanks. To make the most of the new sensor will require top grade lenses, the sensor is not now the limiting factor. John K
Posted by JAK on 12/11/2013 - 01:15
K-3 20 page review out
Noise is not as simple as "I turn ISO up - therefore I will get more noise", this shot was taken at an ISO of 400 on a K5 with a Sigma 70 - 300mm lens [ by , on Flickr] and is full of noise. Same camera, same lens - different day shot at 3200ISO [ by , on Flickr] No trace of...
Posted by screwdriver on 15/11/2013 - 10:24
K-3 20 page review out
Why not have a really close look at the studio ISO results in the EPZ review. You'll find out that the detail at ISO 6400 is slightly better in the K-3, even though the noise level is slightly higher. A real life example is in the sample shots, the one of the leaning gravestone. Have a close look...
Posted by Smeggypants on 15/11/2013 - 17:27
K-3 20 page review out
The K3 has more Mp crammed onto the same sized sensor, so the pixels are smaller, will it have more noise - yup, but that's not the whole story, it will also have finer resolution, more detail to start with so noise reduction blur has less effect. Disagree from my findings with high ISO K-3 Files ...
Posted by Smeggypants on 15/11/2013 - 17:30
K-3 20 page review out
Was the first one very underexposed to begin with? Yes I think that's the main reason for the noise Ken. Probably a combination of me not applying EV compensation in the heat of the moment and the camera being foxed by the bright sky. May be that's why Pentax spent the time and money to increase the...
Posted by screwdriver on 15/11/2013 - 20:43
K-3 20 page review out
But what about if dark frame subtraction was applied, a la K10D? i.e. when an exposure is repeated but without the shutter opening, so that no image is recorded on the sensor, just noise? That would give a noise map. Is it still available on the K5? I never really used it on the K10.
Posted by pgweber on 20/11/2013 - 18:59
K-3 20 page review out
But what about if dark frame subtraction was applied, a la K10D? i.e. when an exposure is repeated but without the shutter opening, so that no image is recorded on the sensor, just noise? The noise isn't in the same place each time. Real noise is random. There's ... where different pixels ha...
Posted by ChrisA on 20/11/2013 - 19:26
K-3 20 page review out
But what about if dark frame subtraction was applied, a la K10D? i.e. when an exposure is repeated but without the shutter opening, so that no image is recorded on the sensor, just noise? That would give a noise map. Is it still available on the K5? I never really used it on the K10. I did...
Posted by Smeggypants on 20/11/2013 - 20:01
K3 handling
I have been using one for a couple of days now, and for the most part I think it presents very similarly to the K7/K5 as you might expect. I think the increased number of functions where you hold down a button and turn an e-dial is probably a reasonable approach to the number of things they have sho...
Posted by matwhittington on 12/11/2013 - 18:24
K3 handling
Initially the relocation of the AF button did annoy me, however after three days of continuous use, I have now concluded it is in fact in a better place now than it was before. Really liking the extra focus points for more control of selective focusing and the AF just seems better than the K5lls....
Posted by Fletcher8 on 12/11/2013 - 19:20
K-3 Vs. K-5iis
This don't make sense. The K-3 appears to be a step backwards in image quality at higher ASA settings. Do you think it's because Lightroom isn't geared up for the K-3 yet? Does the K-3 come with a new dedicated version of PDCU and what are images like when processed through that? I'd like to see....
Posted by Lü on 13/11/2013 - 05:24
