Search results for 'uv filter' - page 171
K10D - Infrared performance?
I might be wrong, but I believe that if you take a color picture and try to get an IR effect, it is possible but it will not be the same than the real IR. If you use an IR filter you will get really some IR light and some near IR light. I think it has to do with the dynamic range of the camera ...
Posted by starkillerz on 09/01/2007 - 23:02
K10D - Infrared performance?
I might be wrong, but I believe that if you take a color picture and try to get an IR effect, it is possible but it will not be the same than the real IR. If you use an IR filter you will get really some IR light and some near IR light. I think it has to do with the dynamic range of the camera ...
Posted by Mongoose on 09/01/2007 - 23:27
K10D - Infrared performance?
There was an instance very recently of one class camera being released with an ineffective IR filter. It had the effect of causing many dark or black items to have a magenta colour cast :oops: . The company in question is offering a free "Upgrade" (correction) and (I think or was it OR) fr...
Posted by Taliety on 10/01/2007 - 13:16
K10D - Infrared performance?
You estimate by focusing slightly closer, and use as small an aperture as possible. It isn't a perfect scenario, but it does work. Some, particularly USA based, photographers have the IR filter removed and replaced by plain glass to make a customised IR camera. Apparently old 2MP Kodak cameras ar...
Posted by johnriley on 10/01/2007 - 15:48
K10D - Infrared performance?
Just read this on the Pentax Japan site: The K10D’s low-pass filter is optimized to minimize false colors and provide well-balanced resolution. An infrared-cut filter and an interference-type sharp-cut infrared-cut filter have also been incorporated to effectively reduce red-component noise for the...
Posted by MattMatic on 17/01/2007 - 06:50
Whats on your "User" mode?
I've not really used my user mode yet - but it seemed to me that it would be best to set it up for landscape work (my first love, as it were), then if I see a beautiful scene and want to grab a shot I just switch to user & it will be OK. And even in more considered moments I can switch to user a...
Posted by amilner on 10/01/2007 - 11:58
Pentax K10D lens compatability
I assume you mean the SMC-F 17-28mm fisheye, the SMC-FA 28-200mm, the SMC-FA 80-320 - all these lenses are perfectly ok on digital. You will get all functions: autofocus, auto-aperture etc. I use SMC-F and SMC-FA lenses that were designed for film and can say they are absolutely sublime on digit...
Posted by MattMatic on 16/01/2007 - 09:45
Pentax K10D lens compatability
I assume you mean the SMC-F 17-28mm fisheye, the SMC-FA 28-200mm, the SMC-FA 80-320 - all these lenses are perfectly ok on digital. You will get all functions: autofocus, auto-aperture etc. I use SMC-F and SMC-FA lenses that were designed for film and can say they are absolutely sublime on digit...
Posted by Lilly on 16/01/2007 - 20:09
Pentax K10D lens compatability
Lilly, IF = Internal Focus which means the filter end of the lens does not rotate when focussing. This has two main benefits, you can use a circular polariser and it won't turn, and you can fit a 'petal' shaped hood rather than a round one.
Posted by Mannesty on 24/01/2007 - 09:22
noise comparison - istD & k10D?
so far my subjective opinion is that high ISO shots from the K10D have a similar level of noise to my DL2, but a different type if you follow my meaning. There seems to be less blotchy colour noise from the 10D, and therefore what noise there is is more easily corrected in software. The only ...
Posted by Mongoose on 05/02/2007 - 12:29
Macro Ant images
Tom, thanks for psting your pic and welcome to the forum. Your pic has rekindled a project that I put away a while ago, that is a ringflash mount to fit a reversed K mount lens. Quite simply, I've taken the K mount from an old manual extension tube and removed the glass from a 58mm skylight fi...
Posted by Mannesty on 23/01/2007 - 23:02
Macro Ant images
Try Speed Graphic Though these are only lens to body adaptors - I'm sure they do the reversing filter adaptors though. Jessops appear to have them Silly price though
Posted by amilner on 27/01/2007 - 17:43
Macro Ant images
where can I get an adapter? I would want a 49-52 adapter. Do you mean you want to mount a lens normally then reverse mount another lens to the front of that? If so the then what about bonding a couple of "Cokin" filter system lens rings together with epoxy resin or similar?
Posted by fatspider on 27/01/2007 - 20:45
Exposure issue with K10D
Thanks George I did recover them as I always shoot RAW - phew Now I know what can do it I'll have a go with polarising filter to see if that helps. :D :D :D
Posted by Rodger Fooks on 03/02/2007 - 14:36
Exposure issue with K10D
A polarising filter will kill the reflections, but it might kill the atmosphere of the shot as well, if overdone. If you polarise completely, then something interesting needs to be under the water!
Posted by johnriley on 03/02/2007 - 14:39
Cornish Pic
HDR = High Dynamic Range HDRI = High Dynamic Range Imaging. It involves a few things: 1. Taking a series of bracketed exposures (on a tripod). Say, -4EV, -2EV, 0EV, +2EV, +4EV (that's four stops underexposed, two stops underexposed, "correct", two stops over, four stops overexposed) ...
Posted by MattMatic on 07/02/2007 - 12:26
lens hoods
It's so that you can rotate a polarising filter. G
Posted by George Lazarette on 07/02/2007 - 09:29
lens hoods
It's removaeable so that you can rotate a polarising filter with the lens hood still in place.
Posted by johnriley on 07/02/2007 - 09:29
lens hoods
Now there's clever! Thanks peeps, now I need to buy a polarizing filter!
Posted by justgetoutandride on 07/02/2007 - 09:49
lens hoods
Now there's clever! Thanks peeps, now I need to buy a polarizing filter! Be sure you are buying a linear polarizing filter because you don't need to rotate a circular one. :lol:
Posted by ialex on 07/02/2007 - 10:32
