Search results for 'uv filter' - page 186
lens care
I dare say the front element would have still looked pretty horrible had it smashed into whatever instead of the filter. Surely any bump bad enough to break the filter would leave a pretty nasty gash in the front element? Okay, try this experiment. Pick a lens (any lens), then without a filter on ...
Posted by Daniel Bridge on 15/12/2008 - 19:27
lens care
Not being that daft I took an old 49mm Pentax filter and bashed that on my knee in a cupped hand wearing a glove. I hurt my knee. As I say, 25 years and I have never ever seen a broken filter* but I have seen my ignorant staff scrubbing at the front of a lens with any old grubby bit of cloth tha...
Posted by womble on 15/12/2008 - 19:42
lens care
In your situation Kris, I'd have filters on the lenses too (or not let them near your monkies :lol:). But for general use I avoid them. A filter is more likely to break than a lens front element. So if it is knocked, it's more likely to break and almost certainly damage the lens element. If th...
Posted by Daniel Bridge on 15/12/2008 - 19:49
lens care
A filter is more likely to break than a lens front element. So if it is knocked, it's more likely to break and almost certainly damage the lens element. If there's no filter on, there's a better chance the lens may be fine.Dan I agree. There is very little chance the lens will break but I will pr...
Posted by womble on 15/12/2008 - 20:28
Infra red filter?
Whilst checking to see if a remote control needed new batteries I used my K110D and got this photo Out of interest I checked using my K200D and got this As the IR transmitter in the control isn't visible with the K200D does this mean the camera has a built in IR filter?
Posted by Hardgravity on 15/12/2008 - 16:33
Infra red filter?
All DSLRs have built in IR-cut filters... some are more aggressive than others :( If you want an IR camera, there's a US company that can "hack" your camera and remove the IR-cut filter completely. Pete Bargh did an article on ephotozine.com - he had his *ist-D modified for IR-only photography. G...
Posted by MattMatic on 15/12/2008 - 16:46
Infra red filter?
Simple answer, they both do, but the one in the K200D filters out more of the IR end of the spectrum. I think your K110D is a 6Mp camera, the same as the *istD, and the K200D is 10Mp, which is the same as the K10D. For that reason, I have kept my *istD for the odd IR excursion. It's also possi...
Posted by Mannesty on 15/12/2008 - 16:48
Infra red filter?
OK, so ALL DSLRs have a built in filter What about 'pocket' cameras, only my new Panasonic Lumix shows the IR brightly, as does my old Sony DSC-U20. Does this mean the filter type is the same as the K110d? :?: I'm only interested out of curiosity! :? Just found my daughter's Nikon Coolpix E...
Posted by Hardgravity on 15/12/2008 - 17:18
Infra red filter?
OK, so ALL DSLRs have a built in filter What about 'pocket' cameras, only my new Panasonic Lumix shows the IR brightly, as does my old Sony DSC-U20. Does this mean the filter type is the same as the K110d? :?: I'm only interested out of curiosity! :? Just found my daughter's Nikon Coolpix E...
Posted by Mannesty on 15/12/2008 - 17:39
Infra red filter?
All sensors are very sensitive to IR light, so it's usually filtered out to a greater or lesser degree. The *istD series and it seems the other 6MP variants are quite good for IR - use an R72 filter over the lens for the best result. The K10D was poor for IR and we can see why. Some earlier Ko...
Posted by johnriley on 15/12/2008 - 18:05
Infra red filter?
All DSLRs have built in IR-cut filters... some are more aggressive than others :( If you want an IR camera, there's a US company that can "hack" your camera and remove the IR-cut filter completely. Pete Bargh did an article on ephotozine.com - he had his *ist-D modified for IR-only photography. G...
Posted by Daniel Bridge on 15/12/2008 - 19:33
Infra red filter?
To quote John; The K10D was poor for IR and we can see why. The K10 and K200 share the 10meg sensor, so... Do the other cameras I have share a common make sensor, perhaps Sony? Which would explain why they see more IR. :wink:
Posted by Hardgravity on 16/12/2008 - 08:10
Infra red filter?
It is a Sony sensor.
Posted by johnriley on 16/12/2008 - 09:19
Infra red filter?
Here is an example taken with*istD + Hoya R72 filter with an old Hanimex 28mm lens. John
Posted by DOIK on 16/12/2008 - 09:32
Infra red filter?
Thanks for the info. So let me get this straight, my K110d and a R72 filter should allow me to play in the IR, getting shots like DOIK's. When the Xmas rush is out of the way I'm going to Play. :)
Posted by Hardgravity on 17/12/2008 - 08:15
Infra red filter?
my K110d and a R72 filter should allow me to play in the IR Correct. Your K200D might produce similar results but would require much longer exposure times. By replacing the sensor's filter with plain glass, handheld IR is possible as the exposure times are dramatically shortened.
Posted by Mannesty on 17/12/2008 - 08:23
Infra red filter?
Too cap it all off in this weeks Amateur Photographer there's an article on just this subject! :shock: So...
Posted by Hardgravity on 17/12/2008 - 21:30
Infra red filter?
my K110d and a R72 filter should allow me to play in the IR Correct. Your K200D might produce similar results but would require much longer exposure times. By replacing the sensor's filter with plain glass, handheld IR is possible as the exposure times are dramatically shortened. If you wind ...
Posted by DOIK on 17/12/2008 - 21:39
Infra red filter?
That Company in Norfolk is near here. I can check them out for you if you're considering using them. Alternatively just do that remote control test and see if you'll get the results you're after :D
Posted by GrahamNR17 on 11/02/2009 - 20:26
Infra red filter?
I've learned a bit more about IR conversion since my last post here. The cameras filter can be replaced by an R72 (IR) filter so that you can use the viewfinder/metering normally, but only IR light reaches the sensor. It is also necessary to move the sensor rearwards during this conversion to cater ...
Posted by Mannesty on 12/02/2009 - 10:10
