Screw on filter at all times?

R

RyanMKincaid

Well-known member
Quick question: can I keep my Tiffen screw on UV filter on my lens at all times for filming and will it have any affect on picture quality? Please understand that I'm a nob, to be even more specific, I'm more of a writer/director and not a DOP. I purchased my 7D purely to cut run-n-gun shorts. While I wish I had the skill, it's not my bag of tea. Still, I would like to get some quality images out of the camera. I have used the kit lens but found them image results grainy on playback. I'm currently using a couple of Nikon lenses with an adapter.
 
Grain has nothing to do with your lens, your ISO is probably too high, if you're having to use high ISO then you need more light or a faster lens.
I never keep filters on the lens unless I absolutely need them, ie. ND filters. The more layers of glass you put in front of the sensor, the more your picture quality can decrease. UV filters do almost nothing in my experience, other than stop scratches which are perfectly preventable by being careful instead.
 
thekreative said:
I never have a screw on filter on any of my lenses unless there is flying debris.
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Im the exact opposite. Each new lens gets a new or at least a very thoroughly cleaned UV filter before it ever gets used. I would rather have the UV filter get a scratch and replace that cheap filter rather than have the lens get scratched and damaged.

I haven't noticed clarity problems with my high quality lenses ever before when using high quality filters. When using cheap filters from DealExtreme or something like that i have noticed my longer lenses having some blurring around the corners.
 
I have noticed unwanted flares in lowlight conditions due to the extra glass of the filter. Maybe it is just the quality of the filters but I avoid using one thereafter
 
I throw on a UV if I am shooting in a potentially hazardous environment. But if there's nothing flying around or anything like that, no filter, except for maybe an ND.
 
Id use a high quality multicoated uv filter. Protects from flares and dusts

Disadvatage is those are expensive.. Like the hoya pricey hoya ones
 
Im the exact opposite. Each new lens gets a new or at least a very thoroughly cleaned UV filter before it ever gets used. I would rather have the UV filter get a scratch and replace that cheap filter rather than have the lens get scratched and damaged.

I haven't noticed clarity problems with my high quality lenses ever before when using high quality filters. When using cheap filters from DealExtreme or something like that i have noticed my longer lenses having some blurring around the corners.
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I am the same way. I'd much rather have something hit my UV then my real glass! I've not had many problems with it. I have had some flaring before, but its usually due to smudges. Glad those smudges were on the UV and not my front glass element! I've even gotten the cheapy-ebay UV filters for some longer lenses and have had ZERO problems with them yet.
 
Thanks for the varying opinions.

The purpose of my UV filters is solely to provide extra protection to the lens glass. Ultimately it seems that other than ND filters there is no definative answer.
 
I keep my UV on all the time unless I am shooting in low light, at night, because it will sometimes cause ghosting of lights.
 
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