UV filters.

Glover
Posted 20/03/2010 - 21:16 Link
I generally leave a uv filter on every lens i have all the time to protect the front glass, is this a good thing or a bad thing?

UV should be used outside i know but what about indoor photography for example in a studio environment, should it stay on or off, will it make a diffence to image quality?
Pentax K-5
DA 18-55mm AL WR DAL 50-200mm Tamron 70-300mm, Auto Chinon 28mm 2.8. sigma 30mm 1.4 DC
Metz 48 af-1
Flickr
Edited by Glover: 20/03/2010 - 21:36
mikew
Posted 20/03/2010 - 21:25 Link
Why should UV be used outside?
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You can see some of my shots at my Flickr account.
Glover
Posted 20/03/2010 - 21:35 Link
Well not should but generally would be is what i meant as uv comes from the sun and a uv filter used outside would help block uv

maybe saying should be used outside wasn't meant in the way i made it sound was talking hypethetically, point is that i'm asking is......i'll rephase it......i'm led to believe that the main purpose in having a uv filter is to protect the front element, but used outside will help block uv, if used indoors will it have any effect on image quality.

In simple terms i'm asking, is it ok for me to leave uv filters on my lenses without taking them off at all.
Pentax K-5
DA 18-55mm AL WR DAL 50-200mm Tamron 70-300mm, Auto Chinon 28mm 2.8. sigma 30mm 1.4 DC
Metz 48 af-1
Flickr
mikew
Posted 20/03/2010 - 21:39 Link
You do know how to open a can of worms don't you?

Personally I don't spend 300 quid on a lens and then potentially compromise its quality by putting an extra flat piece of glass in front of it. That's me. Also you do hear mixed opinions on the effectiveness of the protection as well. I rely on a lens hood by and care for protection.

Mike
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You can see some of my shots at my Flickr account.
CoDa
Posted 20/03/2010 - 21:45 Link
I have seen somewhere? an advert for a lens protection filter, if I remember its plain glass, so would this be a better type of lens protection to use :

I also use a UV filter (must get one for my 55-300) as protection of the front glass on all my lenses
Colin

“Nobody made a greater mistake than he who did nothing because he could do only a little.”
Edmund Burke (1729 – 1797)


[IMG]http://i941.photobucket.com/albums/ad254/weldingblues/K-7userbar-red.jpg[/IMG]
Edited by CoDa: 20/03/2010 - 21:47
Glover
Posted 20/03/2010 - 21:47 Link
mikew wrote:
You do know how to open a can of worms don't you?

What do you mean by that?
Pentax K-5
DA 18-55mm AL WR DAL 50-200mm Tamron 70-300mm, Auto Chinon 28mm 2.8. sigma 30mm 1.4 DC
Metz 48 af-1
Flickr
Anvh
Posted 20/03/2010 - 21:47 - Helpful Comment Link
Glover this is indeed a can of worms like Mike says, it has been discuss quite some times now.

UV filter will have limited effect on digital because there is an UV filter in front of the sensor, so basically you've a piece of glass in front of your lens making flare more of a problem and costing money while it does nothing.

As for protection, I always show this video, don't worry it's a Canon lens
link

As the video shows the coating of a lens is quite hard now what will happen if you did this with a filter on it, filter shatters, shatters of the filters are sharp and hard and you get scratches

There are of course exception, those are sandstorms, salt water or other chemicals for the rest use your hood, far better protection
Stefan
Comment Image

K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Glover
Posted 20/03/2010 - 21:48 Link
Glover wrote:
mikew wrote:
You do know how to open a can of worms don't you?

What do you mean by that?
Never mind stefan just answered that for me
Pentax K-5
DA 18-55mm AL WR DAL 50-200mm Tamron 70-300mm, Auto Chinon 28mm 2.8. sigma 30mm 1.4 DC
Metz 48 af-1
Flickr
Glover
Posted 20/03/2010 - 21:50 Link
thanks stefan.....off go the filters

And as for that video OH MY GOD
Pentax K-5
DA 18-55mm AL WR DAL 50-200mm Tamron 70-300mm, Auto Chinon 28mm 2.8. sigma 30mm 1.4 DC
Metz 48 af-1
Flickr
Edited by Glover: 20/03/2010 - 21:52
Anvh
Posted 20/03/2010 - 21:51 Link
Here is a good read Glover http://www.luminous-landscape.com/columns/sm-feb-05.shtml

And what Mike means just do a search, here take a look you aren't the first and the last one to ask link
Stefan
Comment Image

K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
Glover
Posted 20/03/2010 - 21:55 Link
You know what....the amount of times i've looked for a search option and not been able to find it, then you post that link, i go back to the main page then see the little tab in the top right corner.

Sorry if i'd known it were there i would of searched.
Pentax K-5
DA 18-55mm AL WR DAL 50-200mm Tamron 70-300mm, Auto Chinon 28mm 2.8. sigma 30mm 1.4 DC
Metz 48 af-1
Flickr
Anvh
Posted 20/03/2010 - 21:58 Link
Don't worry Glover I just learned how to use it link
Stefan
Comment Image

K10D, K5
DA* 16-50, DA* 50-135, D-FA 100 Macro, DA 40 Ltd, DA 18-55
AF-540FGZ
mikew
Posted 20/03/2010 - 22:03 Link
Glover - I didn't mean any offence in my comment. I should have added a smiley I guess.
---------------------------------------------------

You can see some of my shots at my Flickr account.
Glover
Posted 20/03/2010 - 22:10 Link
mikew wrote:
Glover - I didn't mean any offence in my comment. I should have added a smiley I guess.
No no thats fine, didnt take offence just didnt know what you meant, now i know i completely understand, feel a bit of a fool to be honest after not seeing the search option up untill now, and the search option will now be well used, thanks all the same to both of you, i got my answer anyway and the filters are going
Pentax K-5
DA 18-55mm AL WR DAL 50-200mm Tamron 70-300mm, Auto Chinon 28mm 2.8. sigma 30mm 1.4 DC
Metz 48 af-1
Flickr
CoDa
Posted 20/03/2010 - 22:24 Link
Found the place for the plain glass filters here
Colin

“Nobody made a greater mistake than he who did nothing because he could do only a little.”
Edmund Burke (1729 – 1797)


[IMG]http://i941.photobucket.com/albums/ad254/weldingblues/K-7userbar-red.jpg[/IMG]

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