UV Filter fogging the element
Posted 21/05/2010 - 11:06
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Take it off! You are unlikely to need it - contemporary digital sensors have little if any sensitivity to UV when compared to the film emulsions of 35 film SLRs. If you have a front lens element that needs special protection (not sure why!), then perhaps you might consider a UV filter -otherwise, it's just another obstacle between you and a clean image.
Posted 21/05/2010 - 11:13
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i-Berg wrote:
Take it off! You are unlikely to need it - contemporary digital sensors have little if any sensitivity to UV when compared to the film emulsions of 35 film SLRs. If you have a front lens element that needs special protection (not sure why!), then perhaps you might consider a UV filter -otherwise, it's just another obstacle between you and a clean image.
Couldn't agree more
Take it off! You are unlikely to need it - contemporary digital sensors have little if any sensitivity to UV when compared to the film emulsions of 35 film SLRs. If you have a front lens element that needs special protection (not sure why!), then perhaps you might consider a UV filter -otherwise, it's just another obstacle between you and a clean image.
Camera:|K-7|
Pentax Lenses:|DA12-24/f4 ED AL|DA35Ltd Macro|FA31Ltd|FA77Ltd|FA50/1.4|F70-210|FA20-35 f4/AL|A*200/f4 Macro ED|A50/1.7|A50 Macro f2.8|1.7xAF adapter|
Voigtlander|125/f2.5SL Macro APO Lanthar|
Sigma Lenses:|EX DG 100-300 f4|2X & 1.4X TC|
Flashes:|AF540FGZx2|RingFlash AF160FC|
Pentax Lenses:|DA12-24/f4 ED AL|DA35Ltd Macro|FA31Ltd|FA77Ltd|FA50/1.4|F70-210|FA20-35 f4/AL|A*200/f4 Macro ED|A50/1.7|A50 Macro f2.8|1.7xAF adapter|
Voigtlander|125/f2.5SL Macro APO Lanthar|
Sigma Lenses:|EX DG 100-300 f4|2X & 1.4X TC|
Flashes:|AF540FGZx2|RingFlash AF160FC|
Posted 21/05/2010 - 20:00
Link
front lens element needing protection - its cheaper to replace a UV/skylight/whatever filter when you drop a lens/camera, than it is to replace an entire lens surely?
Posted 21/05/2010 - 20:09
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Bill_And wrote:
front lens element needing protection - its cheaper to replace a UV/skylight/whatever filter when you drop a lens/camera, than it is to replace an entire lens surely?
The front element is very hard and suprisingly resistant, filters generally aren't.front lens element needing protection - its cheaper to replace a UV/skylight/whatever filter when you drop a lens/camera, than it is to replace an entire lens surely?
I picked up a M35-70 (I think ) as part of a job lot and that had been dropped with a UV filter on - the front element was absolutely covered in scratches where the filter had shattered and tiny fragments of glass had dug their way in. There's no doubt in my mind that if no filter had been in place the damage would have only been a fraction of what it was...
Joining the Q
Posted 21/05/2010 - 20:21
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Looking back it was actually an A35-105 which makes it a double crying shame! Here's a picture I took before selling it on for spares/repairs:
[IMG]http://i223.photobucket.com/albums/dd37/hefty1969/R0011412copy.jpg[/IMG]
You can see where the shattered filter left road rash all over the front.
[IMG]http://i223.photobucket.com/albums/dd37/hefty1969/R0011412copy.jpg[/IMG]
You can see where the shattered filter left road rash all over the front.
Joining the Q
Posted 21/05/2010 - 20:41
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Bill_And wrote:
front lens element needing protection - its cheaper to replace a UV/skylight/whatever filter when you drop a lens/camera, than it is to replace an entire lens sureead this ly?
yes they are very fragile link front lens element needing protection - its cheaper to replace a UV/skylight/whatever filter when you drop a lens/camera, than it is to replace an entire lens sureead this ly?
Also read this link
Stefan
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Posted 21/05/2010 - 21:01
Link
Nice one Stefan - there IS a good use for a C***n - as hammer tester. The hammer in the film obviously failed.
Reckon mine could do better.
Seriously, it isn't as hard as that clip might suggest to damage the coating on a lens. Guess how I know.
Reckon mine could do better.
Seriously, it isn't as hard as that clip might suggest to damage the coating on a lens. Guess how I know.
Posted 21/05/2010 - 21:07
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I have been doing photography for 30 years and have yet to drop a camera on its front lens element.
Use a hood all the time, no need for anything else unless you are in a sandstorm or salt water spray.
Use a hood all the time, no need for anything else unless you are in a sandstorm or salt water spray.
Peter
My Flickr page
My Flickr page
Posted 21/05/2010 - 21:14
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ah ha! thankyou, i've been trying to find that clip for ages...
Still shooting in the dark (literally and metaphorically)...
Posted 21/05/2010 - 21:17
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Oggy wrote:
Seriously, it isn't as hard as that clip might suggest to damage the coating on a lens. Guess how I know.
What happened Oggy?Seriously, it isn't as hard as that clip might suggest to damage the coating on a lens. Guess how I know.
It depend on what kind of abuse the lens gets.
I don't think any branch or normal English day should be ale to damage the lens. It's when something harder then the coating and something small that you should worry about, like sand for example like peter says or something corrosive like salt water.
Stefan
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Posted 21/05/2010 - 21:19
Link
flossie wrote:
ah ha! thankyou, i've been trying to find that clip for ages...
Have linked it a couple of times by now.
ah ha! thankyou, i've been trying to find that clip for ages...
Stefan
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Posted 21/05/2010 - 22:11
Link
Anvh wrote:
It depend on what kind of abuse the lens gets.
I don't think any branch or normal English day should be ale to damage the lens. It's when something harder then the coating and something small that you should worry about, like sand for example like peter says or something corrosive like salt water.
I tried to put the kens cap on with the hood still on and fumbled it.
Oggy wrote:
Seriously, it isn't as hard as that clip might suggest to damage the coating on a lens. Guess how I know.
What happened Oggy?Seriously, it isn't as hard as that clip might suggest to damage the coating on a lens. Guess how I know.
It depend on what kind of abuse the lens gets.
I don't think any branch or normal English day should be ale to damage the lens. It's when something harder then the coating and something small that you should worry about, like sand for example like peter says or something corrosive like salt water.
Posted 21/05/2010 - 22:14
Link
Really, was it a metal lens cap?
Stefan
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Posted 21/05/2010 - 22:16
Link
Nope.
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