I have never ever needed to clean a sensor, and I am changing lenses, putting on and taking off TCs constantly, inside and outdoors. What am I doing wrong?Yes exactly. Just don't bother
Upvote
0
I have never ever needed to clean a sensor, and I am changing lenses, putting on and taking off TCs constantly, inside and outdoors. What am I doing wrong?Yes exactly. Just don't bother
That's correct about high iso range. I've occasionally underexposed at iso 6400 and pushed through 2 or more stops with good results as high iso is in the "iso independent" region. However, that won't work as well for the 5DS at low iso as the DR flattens out with iso in the 100 region.Not really. You can just underexpose (either of them actually) to the same high ISO setting. 5R however does retains some advantage in Dynamic Range also at high iso settings.
I somehwat dissagree: the 5Ds (not the 5D) Iso is: 100–6400; Expanded: 50–12,800 while the R5 ISO range of 100-51200 Expaneed 50 - 102400Not really. You can just underexpose (either of them actually) to the same high ISO setting. 5R however does retains some advantage in Dynamic Range also at high iso settings.
That's easy - you're not doing like Artie did when he complained about his 1DX2 and tried to get a new one from Canon.I have never ever needed to clean a sensor, and I am changing lenses, putting on and taking off TCs constantly, inside and outdoors. What am I doing wrong?
Don't fall for that marketing iso trick. This is what Bryan from TDP writes:I somehwat dissagree: the 5Ds (not the 5D) Iso is: 100–6400; Expanded: 50–12,800 while the R5 ISO range of 100-51200 Expaneed 50 - 102400
Exactly. I'm the same, and I use pretty well primes all the time and 'am constantly changing them ! I did have to get the sensors on my original 5D's (not 5DS !!) cleaned occasionally as they got so there were more dust spots than pixels, but now, with the latest in-built ultrasonic cleaning I just don't worry about it.I have never ever needed to clean a sensor, and I am changing lenses, putting on and taking off TCs constantly, inside and outdoors. What am I doing wrong?
Think you do not understand how high iso works on digital cameras. The sensor is iso invariant from around 800 iso on most sensors. So if you underexpose from there its just like cranking up the iso setting. No iso dail needed.I somehwat dissagree: the 5Ds (not the 5D) Iso is: 100–6400; Expanded: 50–12,800 while the R5 ISO range of 100-51200 Expaneed 50 - 102400
The problem is that the Canon sensors weren’t very invariant. They would show large differences. The new sensors are much better.Think you do not understand how high iso works on digital cameras. The sensor is iso invariant from around 800 iso on most sensors. So if you underexpose from there its just like cranking up the iso setting. No iso dail needed.
Fischer is correct that they tend to be iso invariant at greater than 800, which is where noise is dominated by the statistics of photon flux. The older Canon sensors were not so good at low iso where they failed to suppress the electrical noise where the photon noise is low.The problem is that the Canon sensors weren’t very invariant. They would show large differences. The new sensors are much better.
Without wanting to start a DR debate, the 5DS/SR 's low ISO dynamic range, or to put it in practical terms, shadow raising ability, is closer to the "new" Canon on-chip ADC sensors than it is to the older 5DII / III / 6D / II etc.I think EOS 5R's DR is quite a big advantage over 5DsR but if you are happy with what you have from 5SsR then it isn't an advantage.
It is definitely a good bit behind the 5D IV and a lot behind the R5 in terms of measured DR:Without wanting to start a DR debate, the 5DS/SR 's low ISO dynamic range, or to put it in practical terms, shadow raising ability, is closer to the "new" Canon on-chip ADC sensors than it is to the older 5DII / III / 6D / II etc.
If you want to push to those extremes always update to the very latest tech you can get your hands on.It is definitely a good bit behind the 5D IV and a lot behind the R5 in terms of measured DR:
I don't know about fixed pattern noise and banding, but the latter can even be found on the 5D IV when pushed to the absolute extremes and is were the 90D, M6 II, 1DX III, R6 and R5 sensors really show that they are from a different generation.
I agree that 5Ds's ADC is better than the others but even 5D Mark IV has a noticeable advantage in terms of DR compared to 5Ds series. I compared them myself. 5D IV has noticeably cleaner shadows. I assume R5 has even better DR.Without wanting to start a DR debate, the 5DS/SR 's low ISO dynamic range, or to put it in practical terms, shadow raising ability, is closer to the "new" Canon on-chip ADC sensors than it is to the older 5DII / III / 6D / II etc.
I have had my 5 Dsr for about 3 and a half years and no dust. My original classic 5D was a dust magnet, my 5DII just a bit. Have no fear.In 6 years using 5D II & IV, I did not even have a speck of dust on a sensor, despite frequent lens changes.
But my Leica is a different story, dust every now and then, but never any wet cleaning.
I thank you all for your answers, the 5 Dsr is on my "buy list" now!
The EVF does offer what you see is what you get DOF...DSLR's optical VF are DOF limited to f4 (due to the microlenses on the viewfinder screen).
The sensor have pixels, each collect as many photons during the time in which the picture is taken, the number/concentration of colelcted photons are converted to electric signal and that is amplified by another circuit to generate the "image" as we see it. While the amount of photones and the conversion into electic siglan is fixed, the amlification is not (as well as the amplificaion noise reduction). But you need to do all this within a limited time (the processor), so if you take the same sensor, the better the processos, the faster you can collect the iamge and more noise reduction algorithms can be used which relates in "higher ISO".Think you do not understand how high iso works on digital cameras. The sensor is iso invariant from around 800 iso on most sensors. So if you underexpose from there its just like cranking up the iso setting. No iso dail needed.
Using DSLRs maybe?I have never ever needed to clean a sensor, and I am changing lenses, putting on and taking off TCs constantly, inside and outdoors. What am I doing wrong?
One very neat feature that Canon introduced with the R is the shutter that guards the sensor when the camera is turned off. I've been very careful in turning off the R5 when changing lenses.Using DSLRs maybe?
My experience that they weren’t invariant at 800 either. They couldn’t hold much shadow.Fischer is correct that they tend to be iso invariant at greater than 800, which is where noise is dominated by the statistics of photon flux. The older Canon sensors were not so good at low iso where they failed to suppress the electrical noise where the photon noise is low.