Search results for 'sensor cleaning' - page 649
Basic Colour Management: C1 & PS
In response to some other threads, I thought it appropriate to give a little guidance on the way you should set up a Windows machine for colour with Capture One and Photoshop. First of all, you need to decide on a colour space you are going to work with (as a rule). I suggest one of three: Adobe...
Posted by Rees on 26/05/2009 - 14:56
Now this is more like it
:shock: not sure about their claim of it being the biggest sensor their is a telephoto lens floating about in space thats not using a ccd sensor THE HUBBLE TELESCOPE make that baby in a pentax k mount and were cooking with gas :D :D
Posted by ali studio one on 21/06/2006 - 08:22
Monitor Calibration
I don't want to hijack this thread but it seems like lots of knowledgeable people are all in this same "room" together and I think this is my best chance to try and get to the bottom of a particular problem. I've had an *istDS for a year. Apart from that I am in the process of scanning ...
Posted by WiRED on 06/07/2006 - 21:11
Monitor Calibration
Let's clear a few points up (sorry to duplicate golfdiesel!): * Any video card extensions - set these to factory defaults. If you attempt to use the gamma or colour controls in the video card they will certainly result in horrible colour rendition, colour posterisation and the like. You have been...
Posted by MattMatic on 07/07/2006 - 12:56
It's Not What You Pay
I am not going to say much until the K10D rolls out. :wink: As to the M8, Leica have suffered from a series of faulty boards which cause the banding and green ghosts on some images. Leica are offering a free fix (understandable) and 30% off a lens of the owners choice plus some free filters. I ...
Posted by Kim C on 29/11/2006 - 21:27
How Does WB Work?
Ok, so you set your white balance to something like Tungsten for shooting indoors... what actually happens in camera here? Does the sensor make the blue photosites more sensitive? or does the sensor give equal sensitivity to all RGB photosites and the camera just process the colour? I've noticed i...
Posted by Joshua Hakin on 06/01/2007 - 20:38
Site with some Pentax IR tech info.
Any thoughts? Is it just a blurred star? :idea: A radio-active dust spot on your sensor... :lol: Andy
Posted by alfpics on 21/01/2007 - 16:11
Digitising negative collection
I have the Epson 2450 Photo, but I find I get better (and faster) results snapping slides or negs with a digital camera and a macro lens. You need to be able to hold the neg in place and provide an even light source behind. One possibility re cleaning might be to wash the negs in warm soapy wate...
Posted by George Lazarette on 18/01/2007 - 11:09
Focal length and camera shake
Hi, I knocked this up a few months ago.. thought I'd pos it again, if it helps.. in the above image, the larger (shaded) area relates to the size of the 35mm film plane, and the smaller area in the middle relates to the size of the digital sensor in comparison. (And no pedantry poi...
Posted by LiamD on 24/01/2007 - 11:50
Focal length and camera shake
A so-called "digital" lens has exactly the same angle of view as a non-"digital" lens of the same focal length. All that has chnaged is that the lens designer has tried to make the light path from the lens to the sensor as close to a 90 degree angle (to the sensor) as possible...
Posted by George Lazarette on 24/01/2007 - 12:20
Up close and personal..
Not nearly as impressive as some of the other attempts above, but this is my offering. Quite a fun challenge to set it all up - the coin was blutacked to the wall with the camera on a small wheely table that I could move back and forth to focus. :wink: couldn't have used a tripod as the whole thing...
Posted by Mr. Ist on 09/02/2007 - 16:32
Pet Photography
Personally, I was thinking along the lines of a larger version of those sticky rat traps. This is all great info, by the way. I've gone back and forth between the K100 or K10. In the end the price difference works out to about double for me for the k10 though and the 100 will do everything I wan...
Posted by Brianj on 18/02/2007 - 03:17
digital slr and lenses
I know dslr's can be backwards compatible with old lenses, and that there is ~1.5 magnification factor for certain sensors, but why are new digital only lenses still using the 'old' nomenclature? For instance, I have a the 18-55 kit and 50-200 kit lenses, but they are not really these sizes are t...
Posted by justgetoutandride on 18/02/2007 - 02:27
digital slr and lenses
Get used to it. Users of medium format and large format have dealt with this angle of view nonsense for years. A 127mm lens is a normal lens on my RB67, it would be a short telephoto on a 645, a longer telephoto on a 35mm camera, and an even longer telephoto on the AOS-C sensor. It's just that...
Posted by Arthur Dent on 19/02/2007 - 03:09
Opinions folks.
How do you rate the Sigma SD14? I picked up a brochure at Focus on Wednesday and it's quite an impressive camera. It's about twice the price of a K10D and looks almost as though it could have been designed by Pentax. There are a few omissions from the specifications - no SR (although it does h...
Posted by Kimbo on 03/03/2007 - 04:25
Opinions folks.
It's about twice the price of a K10D no SR (although it does have Mirror-Lockup), no redeye reduction for the built-in flash and there's no mention of extensive weather proofing It's a CMOS sensor that's cheaper to produce than CCD Sounds like a bargian...not. Still a fine camera though....just doe...
Posted by Don on 03/03/2007 - 05:16
Opinions folks.
Also the Sigma SD10 was truely abysmal in low light. There was a test of Astro photography performance in Sky at Night magazine a few months ago, Canon 350D vs Nikon D50 vs Pentax *istDL vs Olympus E-330 vs Sigma SD10. The results came out in that order, mainly due to noise issues. The reviewe...
Posted by Mongoose on 03/03/2007 - 10:13
Opinions folks.
Well, I've never been overly impressed with Sigma products, some of the lenses are superb and the cameras are OK but I wouldn't switch. For my money, Pentax do and always have offered the most complete package, with genuinely useful innovations and there is very little if anything missing from th...
Posted by Kimbo on 03/03/2007 - 19:00
white balance and other stuff
Had a really big shoot last week and shot over 1000 frames which threw up a few points and I'd welcome your comments. The set up was as follows: *Ist DS with 18/55, 2 Elinchrom 450 heads, white continuous background, 1/160 @f 20. White balance set to 'flash'. Nothing changed at all during the shoot ...
Posted by gartmore on 07/03/2007 - 10:20
white balance and other stuff
Hi Ken, I don't know why you'd get the red cast on some images, although I would take a guess that possibly the colour of the flash would vary slightly depending on how much charge the heads held when fired...? Might be that a few shots in fairly quick succession doesn't allow the heads to gain ...
Posted by Daniel Bridge on 07/03/2007 - 10:41
