Search results for 'sensor cleaning' - page 673
Sharpening
Resizing & heavy postprocessing can create a need for further sharpening Mike, but a RAW image will need sharpening anyway, even with the best lenses. I believe this is to do with the filter in front of the camera sensor causing a little loss of sharpness. A technique I've read about but haven't ...
Posted by RR on 19/10/2009 - 21:01
Sharpening
Sharpening is a minefield of information, but good advice is found in Martin Evening's books. Many people turn off the sharpening in the RAW converter and as a general principle (keeping things very simple) sharpening is done as the very last stage in Photoshop. Different sizes of print and diffe...
Posted by johnriley on 19/10/2009 - 22:21
Manual focus and old eyes (69y)
To go back to my original question :D Greg K200D How accurate and effective is the live view screen on a K7 when used for focusing, I'm aware that the image can be zoomed but does it show a crisp picture on the LCD which enables one to judge the focus and what happens in sunlight, does the ...
Posted by PeteL on 22/10/2009 - 17:10
Memory Cards
I keep Kingston 8Gb SDHC cards in camera and grip. I have 2 x 4Gb SDHC and 2 X 2Gb SD Sandisk Extreme III's in a separate container in my belt pouch which also holds my light meter, cleaning kit, spare batteries, cable release etc. I got fed up of moving umpteen bits of kit between bags depending...
Posted by Mannesty on 23/10/2009 - 14:45
FF Pentax anyone?
Further thoughts on this possible FF. To use George's term "those ending with ON" (manufacturers), have both formats in their arsenal. They refer to FF as Pro cameras and cropped as begginer to semi-pro. A marketing strategy I am sure. Why would Pentax NOT apply the same. They were very late i...
Posted by K10D on 25/10/2009 - 10:49
FF Pentax anyone?
you will be too busy capturing/processing more detail........ I wonder if there's a bit of a misunderstanding here. Unlike film, where bigger format=more detail, this isn't true of digital unless the pixel pitch remains the same and the bigger format has, therefore, more pixels. A 14MP APS-C ...
Posted by johnriley on 25/10/2009 - 11:21
FF Pentax anyone?
Well put John, so is it true to say that regardless of image sensor size, lower pixel density means less noise? Regards
Posted by K10D on 25/10/2009 - 11:27
FF Pentax anyone?
so is it true to say that regardless of image sensor size, lower pixel density means less noise? If there are larger, more widely spaced pixels there will be less light spillage from one to the other, less electronic "crosstalk" and less noise as they will each produce a larger signal. The signal-...
Posted by johnriley on 25/10/2009 - 11:39
FF Pentax anyone?
so is it true to say that regardless of image sensor size, lower pixel density means less noise? If there are larger, more widely spaced pixels there will be less light spillage from one to the other, less electronic "crosstalk" and less noise as they will each produce a larger signal. The signal-...
Posted by K10D on 25/10/2009 - 11:56
FF Pentax anyone?
Somehow I still think it's unlikely Pentax will get a FF camera. Pentax need to maintain 3 lens series then (DA, DFA & DFA645) and I don't see them do that, since they even haven't got the DA range fully in order, still missing some tele lenses. Also they need to fully build the DFA and the DFA645 ...
Posted by Anvh on 25/10/2009 - 16:20
FF Pentax anyone?
I firmly believe that Pentax cannot afford to ignore FF as the main contenders are already making cheaper versions of the original models. Pentax would not have to produce a whole range of lenses themselves as they could be made by another manufacturer and re- badged in the same way as the Tokina m...
Posted by PeteL on 25/10/2009 - 16:55
FF Pentax anyone?
Really guys, we are now only going for the name tag here. I remember some post ago of a new canon with amazing ISO performance, everyone thinks it was a FF sensor but it was an APS-H so really guys do we need FF? Also nobody answered my question, do you think Pentax can build a DFA & DFA645 co...
Posted by Anvh on 25/10/2009 - 17:19
FF Pentax anyone?
Well pentax DID make 'full-frame' lenses for many years,...they had a better range of them than they do now for APS-C.....so, yes, it is at least possible. If pentax did what it does best and started to think outside the box then maybe it could make a 'full-frame' type system with more adaptabili...
Posted by viewfinder on 25/10/2009 - 17:42
FF Pentax anyone?
Really guys, we are now only going for the name tag here. I remember some post ago of a new canon with amazing ISO performance, everyone thinks it was a FF sensor but it was an APS-H so really guys do we need FF? Also nobody answered my question, do you think Pentax can build a DFA & DFA645 co...
Posted by K10D on 25/10/2009 - 17:45
FF Pentax anyone?
The 600mm image stablised monster he whipped out of the boot of his car (from a very neat purpose built bag) was quite some beastie. and equivalent to a 400mm on a Pentax crop sensor.
Posted by Mongoose on 26/10/2009 - 15:45
FF Pentax anyone?
if they do produce a FF camera, that sensor is a good choice. Keep the resolution at around 14MP and give us big pixels, deeper well depths, more dynamic range and higher sensitivities!
Posted by Mongoose on 26/10/2009 - 15:47
FF Pentax anyone?
The 600mm image stablised monster he whipped out of the boot of his car (from a very neat purpose built bag) was quite some beastie. and equivalent to a 400mm on a Pentax crop sensor. I see it as 400mm has same FOV as a 600 on FF and the 600 on a crop has a FOV of 900mm on FF. Magnification is o...
Posted by K10D on 26/10/2009 - 16:29
Dynamic Range and Medium Format
"...It shows what is possible now..." I'm afraid it does not! What it shows is a set of data supplied by measurement against a piece of software. The software was devised by people who needed a set of criteria in order to compose this software. To mention just one defect; there is no mechanis...
Posted by K10D on 26/10/2009 - 09:41
Dynamic Range and Medium Format
For most of us the APS-C sensor is more then good enough, it's only when you make large prints where you will see the difference. That has to do with the whole format and not just the sensor I believe. What viewfinder said about FF is true that we see most innovation in that but the sensor type i...
Posted by Anvh on 26/10/2009 - 11:39
Dynamic Range and Medium Format
Almost all of my work is for publication on the web or in print and I did a test a while back using my 645 and *istDS on a shoot, apart from a slightly 'filmy' look on the MF pictures there was nothing to choose between them on a computer screen. I really don't have much use for large prints which w...
Posted by gartmore on 26/10/2009 - 12:14
