Bit stuck on what UV filter to get

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Ami-Jane

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I'm looking to get a couple of uv filters to help protect my lenses but I'm a bit stuck with what size I should get or where I find the info.

I've got a pentax 18-55 and a sigma 70-300.

If someone can help that would be great thanks
 
As much as your lens looks like a dog with one of those collars on I'd say get a 77mm with a set of step up rings.

As for the actual filter, I can't imagine you'd go far wrong with a Hoya Pro1.
 
Unless you're going to be shooting in an environment where the lens is likely to actually get damaged by flying debris etc I would recommend not using a filter at all.

I used to have filters on all my lenses up until recently, when I did a side by side comparison of the image quality with and without the filter and I was amazed at the loss of quality when the filter was on.

I find that a lens hood provides more than enough protection for almost all shooting situations.
 
Digital cameras don't need uv filters, lens hood will protect your front element unless you're in a war zone, many threads regarding this issue, have a quick search and don't worry too much
 
Naphta said:
As much as your lens looks like a dog with one of those collars on .
Click to expand...

I'm not quite sure what that's meant to mean??

Mad Badger said:
Digital cameras don't need uv filters, lens hood will protect your front element unless you're in a war zone, many threads regarding this issue, have a quick search and don't worry too much
Click to expand...

I'm not wondering whether it's better to have them or not - I just want to know where I find the information as to what size filter would fit my lenses
 
If you look on the front of your lens. The filter thread size is given in mm. the signe is a 0 with an obleque strock through it.
 
EspressoJunkie said:
Unless you're going to be shooting in an environment where the lens is likely to actually get damaged by flying debris etc I would recommend not using a filter at all.

I used to have filters on all my lenses up until recently, when I did a side by side comparison of the image quality with and without the filter and I was amazed at the loss of quality when the filter was on.

I find that a lens hood provides more than enough protection for almost all shooting situations.
Click to expand...

100% agree. I never use them.
 
Don't get me wrong, I love filters, but a 77mm filter looks hillarious on a 52mm thread.

With the adapter:
DSC_0680.jpg

What I think it makes the lens look like: (Not my photo, courtesy of both wikipedia and google images.)
795px-Cone-head_Reni_-_dog_in_Elizabethan_collar.jpg


EDIT: I didn't mean to watermark that photo, ah well. Lightroom export presets eh?
 
Should also say on the inside of your lens cap.

I also think a lens hood protects better than a uv filter. It also can enhance image quality not degrade it like the filter.
 
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As said, unless you are shooting motor cross or something where debris is likely to be fired in your direction I wouldn't bother with a UV. Alway use a lens hood and on almost all lenses your front element is well protected from bumps and knocks.
If you do go the UV route get good ones!
 
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