Search results for 'sensor cleaning' - page 216
Pentax K20D
No the Sigma sensor is a three layered 3.4MP sensor or something of the like. It works differently and isn't really 14MP... It is hard to compare with a bayer pattern CCD or CMOS.
Posted by Tyr on 07/12/2007 - 20:42
Pentax K20D
of course, one could fit a larger (say 18 mp) sensor into a digital body, and call it a 14 mp camera. Why? well if you only used 14mp central area of a larger 18 mp chip, for creating the images, but also used the remaining outer area of the sensor (possibly with lenses/masks placed over it) f...
Posted by Don on 07/12/2007 - 20:58
Pentax K20D
[idle_speculation] 14MP? CMOS? On-chip NR? Expanded dynamic range? FULL FRAME!!?? Could this be it: If it is, then it's an update of the sensor used by Kodak in their SLRs of a few years back. Perhaps Pentax/Samsung have been tweaking it to overcome the 3fps max frame rate - ...
Posted by hefty1 on 11/12/2007 - 10:54
Cleaning Sensor K100D
Did a test and found that the sensor on my K100D has dirt on it..tried with one of those rocket blowers but it just won't shift...any advice please as to how I can remove it without damaging the sensor...I have heard that a pentax sensor cleaner is available to buy but A. can't find one and B. not s...
Posted by Rae000 on 07/12/2007 - 14:27
Cleaning Sensor K100D
I use an Arctic Butterfly brush from Visible Dust on my ist Ds. It works really well. It is nerve racking the first time you clean the sensor, but really it is easy and you should worry, just make sure the battery is fully charged or use a mains adapter.
Posted by Gwyn on 07/12/2007 - 17:40
Cleaning Sensor K100D
Thanks. Where can I buy an Arctic Butterfly brush from please...thanks :D
Posted by Rae000 on 08/12/2007 - 08:07
Cleaning Sensor K100D
Has anyone here tried http://www.cameraclean.co.uk/main/technical/dust_aid.php It seem svery convincing if scary. Mike
Posted by mikew on 08/12/2007 - 08:16
Cleaning Sensor K100D
I use Eclipse E2 fluid and Sensor Swab Type 2 by Potograpghic Solutions Inc.
Posted by gartmore on 08/12/2007 - 10:07
Cleaning Sensor K100D
Thanks. Where can I buy an Arctic Butterfly brush from please...thanks :D Jessops amongst others sell it. It's not cheap but is good. If you Google it I'm sure you will find other retailers inthe UK who offer it. If you go for the Eclipse fluid solution it is important to use E2 fluid not normal Ec...
Posted by Gwyn on 08/12/2007 - 12:18
Sandisc SD
make sure the camera is OFF before you insert or remove the card, and if you use a card reader with your PC, go through the "eject hardware" procedure before removing the card from the reader. As risk of incurring much derision from those here that do do all this, I don't. In 8500 sho...
Posted by ChrisA on 12/12/2007 - 15:35
Sandisc SD
The reason given for turning the camera off before a lens change is usually that the sensor is charged when the camera is on, therefore more likely to attract dust, and with the lens off there's more chance for dust to get in. I don't understand the logic there, as the sensor is behind the shutte...
Posted by Daniel Bridge on 12/12/2007 - 21:48
Sandisc SD
The static charge will attract dust which will land on the filter that covers the sensor. The charge is not stopped by the filter. Agreed that it can't land on the CCD itself, but the effect will be the same.
Posted by johnriley on 12/12/2007 - 23:05
Sandisc SD
But the shutter will be infront of the sensor and filter. Any dust that would get attracted would be behind the shutter, and therefore would not be increased by having the lens removed. :? Dan
Posted by Daniel Bridge on 12/12/2007 - 23:42
Sandisc SD
You mention a filter in front of the sensor. What is this made from? If it is glass why is sensor cleaning viewed with trepidation by some people? I have thought about what to do if mine needs cleaning and the different methods mentioned by people has concerned me to the degree that I don't really f...
Posted by MX veteran on 13/12/2007 - 00:13
Sandisc SD
But the shutter will be infront of the sensor and filter. Any dust that would get attracted would be behind the shutter, and therefore would not be increased by having the lens removed. Yes, I thought that, but when the shutter is released the air movement chucks any debris in the mirror chamber a...
Posted by johnriley on 13/12/2007 - 00:40
Sandisc SD
.....the sensor is charged when the camera is on.... Is this actually true? Or does the 'charge' arising in the CCD occur only when the sensor is exposed to light? Several of the articles I've come across describing how CCDs work are pretty technical, and I don't pretend to fully understand th...
Posted by ChrisA on 29/12/2007 - 10:50
grip shutter release unreliable
Just as a thought, have you tried cleaning the contacts between the body and grip. One of these must be the one to activate the focus, so it might be that there's a bit of dirt fouling the connection. Worth a try. :roll: Dan
Posted by Daniel Bridge on 11/12/2007 - 17:50
Pentax's
Wait and see what DPR says about it, though, eh, George? ;) If it was 30 Megapixel, Full Frame Sensor, 20 FPS and came with a perfect 10-500 compact kit lens and cost £99.00 PA would still find fault! :lol: :lol: :lol:
Posted by xbow on 16/12/2007 - 10:39
Pentax's
Wait and see what DPR says about it, though, eh, George? ;) If it was 30 Megapixel, Full Frame Sensor, 20 FPS and came with a perfect 10-500 compact kit lens and cost £99.00 PA would still find fault! :lol: :lol: :lol: :lol: :lol: that would be quite something though
Posted by ikillrocknroll on 16/12/2007 - 10:50
Pentax's
First let me say that my first DSLR is still at the North Pole awaiting delivery by Reindeer Express, so I will not not in the market for a K20D for some time, that said it is fun speculating on what might / might not be included. Ben hints of features that will improve his workflow as a professi...
Posted by stevejcoe on 16/12/2007 - 12:34
