Search results for 'sensor cleaning' - page 659
Full Frame?
Matt. I think you've jumped to the wrong conclusion re: noise levels. It's higher pixel density that causes noise. I was going to start explaining it, but found this on the net & it sums up what I was gonna say - so I've taken the lazy copy & paste option. Full frame is 36mm x 24mm APS-C is...
Posted by RR on 09/12/2008 - 22:40
DXO Mark - Camera Rankings
Just found this... http://www.dxomark.com/index.php/eng/DxOMark-Sensor/Camera-rankings It appeals to my small brain, but because of my limited intelligence, I can't seem to work out what all this is telling me??? :D It seems to be some kind of image quality benchmark? Interesting to see how...
Posted by Tooks on 11/12/2008 - 22:10
DXO Mark - Camera Rankings
Just found this... http://www.dxomark.com/index.php/eng/DxOMark-Sensor/Camera-rankings It appeals to my small brain, but because of my limited intelligence, I can't seem to work out what all this is telling me??? :D It seems to be some kind of image quality benchmark? Interesting to see how...
Posted by Malo1961 on 11/12/2008 - 22:27
DXO Mark - Camera Rankings
Just found this... http://www.dxomark.com/index.php/eng/DxOMark-Sensor/Camera-rankings It appeals to my small brain, but because of my limited intelligence, I can't seem to work out what all this is telling me??? :D It seems to be some kind of image quality benchmark? Interesting to see how...
Posted by Tooks on 12/12/2008 - 00:26
Samsung and Pentax Difference
DNG is RAW - you are correct. The Pentax adds "PEF" RAW format as well - which is a compressed RAW. It only really means you get more shots per card - that's all. Some reviews have indicated that the JPG images out of camera are better from the Samsung... who knows! They both take the same lense...
Posted by MattMatic on 17/12/2008 - 12:51
Film & trannie scanners
Unfortunately with a DSLR you get a cropped image - it's the smaller sensor that causes this. A full frame DSLR would work. For larger formats taping the original to a lighbox is another method, but you have to be very careful and precise to get a good result.
Posted by johnriley on 21/12/2008 - 15:20
Film & trannie scanners
I have a Pentax bellows kit with a slide copier attachment. Have tried a couple of slides, and the result is promising, just need some more practice to get the exosure right. The light source is my AF-360FGZ set up for remote control and manual exposure. That way the colour balance is about right...
Posted by terje-l on 21/12/2008 - 19:33
30 seconds max, why?
The shutter is held open by electrical power and the longer the shutter time the more power is consumed. Bulb also consumes power and the limit of film camera batteries was usually about 8 hours becaue of this. In a digital camera very long exposures also heats up the sensor. Bit most of all a...
Posted by johnriley on 22/12/2008 - 22:43
30 seconds max, why?
Thank you John, that was informative :) I've looked reciprocity failure up and it was an interesting read, I didn't knew that. With the digital age we have the problem that the sensor gets hot and increase noise and it wouldnt be so good for the lifetime of the sensor either. I do use bulb to h...
Posted by Anvh on 22/12/2008 - 23:25
30 seconds max, why?
I would have thought it was more down to the limits of the metering system. Although you can do longer exposures, the meter cannot accurately measure very, very low levels of light (you'll notice the flashing values - indicating out of range). However, on "M" mode it would, I suppose, have been p...
Posted by MattMatic on 23/12/2008 - 06:46
30 seconds max, why?
My take on this would be to use shorter exposure times and "stack" the images using software. That would get around the problems of heating the sensor etc. I presume these long exposures would be taking place in dark environments? Exactly the conditions to show up the noise from the sensor, so some...
Posted by Father Ted on 23/12/2008 - 09:19
30 seconds max, why?
Thanks Matt, Steve & Father Ted yes I've notice the flash icon Matt, I thought it was that he wants you to pop up the flash because of the sharpness of the image, to prevent blur by moving the camera. It still looks like it meters just fine against the 30 secs though, just need to experiment a b...
Posted by Anvh on 23/12/2008 - 16:08
Histogram advice
I just make sure the histogram doesn't go beyond the right hand edge and not worry too much about getting right up to the right hand edge. If you are shooting RAW (which you are), there are plenty of levels left to play with. I then have room to brighten, darken, or whatever the image a great deal...
Posted by womble on 02/01/2009 - 15:35
K20D + 16-45mm Cheap? £484
One nice thing about the camera is the ergonomics. There's a front and rear dial so you can fully control manual mode... just like in film days (or on a K20D) and unheard of on a point'n'shoot. The best of the Sigma (IQ of larger sensor) and Ricoh (ergonomics) should really be combined into one came...
Posted by rparmar on 15/01/2009 - 14:18
Budget (B/W) Printer?
I have a HPC5280, all in one. I got it because I couldn't afford two printers, one just for photos, and because it can use a special grey cartridge for b/w photo printing. I am happy with it - the blacks are black, the whites white, and there is no colour cast if I use HP paper, or matte paper, wh...
Posted by Malo1961 on 19/01/2009 - 12:50
Photos in the snow
I hope you are a very good skier if you plan on taking your tripod on the slopes. You just need one fall to break that shiny new tripod or (worse) a leg (yours, not the tripod:wink:). A polarizing filter can also be put to good use to cut reflections on the snow and improve contrast. It will even...
Posted by pentaxian450 on 20/01/2009 - 23:57
Whydid it happen?
Yes it happened to me a while ago but it was more than likely my fault as I had had the sceen out for cleaning a few days previously.
Posted by Mike-P on 24/01/2009 - 15:38
Whydid it happen?
Yes it happened to me a while ago but it was more than likely my fault as I had had the sceen out for cleaning a few days previously. If I'd cleaned the screen I could understand it, I've not touched this one, but have had the K110 one out and back with no trouble.
Posted by Hardgravity on 24/01/2009 - 15:44
What's in your pocket?
1. Samsung Forgetwhatmodelnumber mobile phone. Slow and grainy 3 MP camera, but it's slim and light enough to always carry. 2. Pentax Optio S5i. Not great but not bad image quality. Super light & super compact, lovely ergonomics. Find second-hand ones cheaply on Fleabay. 3. Panasonic Lumix LX2...
Posted by iceblinker on 25/01/2009 - 14:05
If Money was no problem what camera would you buy?
I'd buy the time to travel and use the kit I have. One or two additions though, a better tripod, a 43mm Ltd, a FA-1W viewfinder for my LX, some more lenses for my Horseman. All would come to considerably less than the Nikon or the Leicas. I must admit the 110-style SLR would be quite fun. Com...
Posted by womble on 27/01/2009 - 09:45
