CPF - do you remove UV filter when using CPF?

I have a UV "protective" filter to protect my main lens. My CPF screws directly onto that UV filter ....

Curious - do any of you actually remove your UV filter when using the CPF?

Seems like just 1 more layer of glass that I'm contending with..

I remove my UV when using the CPL or ND/GND.

Makes sense -- thanks !!

Cody21 wrote in post #5703044
...Seems like just 1 more layer of glass that I'm contending with..

Exactly. Unless you have a real reason to stack filters (CPL w/GND for example) try to avoid it for exactly the reason you mention.

I leave my UV on when using my CP filter. I don't think a good UV filter degrades your image at all so I see no need to pull it off when I use the CP filter. When I buy a new lens I screw on a good UV filter and never take it off.

stuman16 wrote in post #5704493
I leave my UV on when using my CP filter. I don't think a good UV filter degrades your image at all so I see no need to pull it off when I use the CP filter. When I buy a new lens I screw on a good UV filter and never take it off.

With stacking CPL on the top of UV filter, even the best one, you accomplish exactly nothing – other than losing 1 stop of light and possibly decreasing a bit of image quality.

I leave mine on, taking it off just risks getting fingerprints on the filter/lens. However, I'm not using a UV on my 70-200 because I think it might be causing issues (I've never had problems with any other lens).

It's not an issue for me since I haven't used a UV filter in 25 years...

JWright wrote in post #5704995
It's not an issue for me since I haven't used a UV filter in 25 years...

You're obviously not afraid to get crap on your lens or worst yet - damage it... Given that, what do you use to clean it???? I usually use a rocket blower, and then steam/breath with my microfibre towel to clean my UV (or CPF) filter.

Keep in mind that depending on the lens, stacking filters can also cause vignetting.

JWright wrote in post #5704995
It's not an issue for me since I haven't used a UV filter in 25 years...

^^^^^Me neither.^^^^^

JWright wrote in post #5704995
It's not an issue for me since I haven't used a UV filter in 25 years...

So I take it you have no weathersealed lenses which Canon recommends fitting a UV filter to, to complete sealing? Or shoot in harsh environments?

That's cool. But I fit both scenarios.

Hermeto wrote in post #5704746
With stacking CPL on the top of UV filter, even the best one, you accomplish exactly nothing – other than losing 1 stop of light and possibly decreasing a bit of image quality.

What?

I'm not trying to accomplish any effect by having both.

The UV is just there all the time for protection and I don't see the need to remove it and risk allowing dust onto it and the front of my lens when I use a CP filter.

I add the CP filter to get a bluer sky, reduce reflections and add contrast and it does that whether the UV filter is there or not.

There are posts ad nauseum here in POTN about the pro- and anti- lens protector question. Its a Ford/Chevy question and usually ends up in everyone agreeing to disagree. Its a good thing we have personal choice and can do whatever we like.

My question to the OP is - since your main purpose in using the UV filter is for lens protection why don't you just use a clear glass one instead. Then you would avoid any possible chance that your image quality is being affected by the filter - cheap or expensive?

Clear glass and a lens hood seems to me to be a logical solution to cover all angles.

^ A UV filter effectively IS "clear glass." A skylight filter on the other hand, would be slightly warming. They do make some "digital protective filters" but I'm not sure what the story is with those.