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 Post subject:
PostPosted: Mon Aug 13, 2007 6:06 pm 
my lens arrived today :)

should i protect the lens with a filter? suggestions please!


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PostPosted: Mon Aug 13, 2007 7:03 pm 
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If you never go out in rain (or spray from the sea) and never forget to put on the lens-cap and never touch the frnt-lens and always have your lens-shade on? No, you don't need a UV-filter! :wink:

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Last edited by Thomas on Mon Aug 13, 2007 8:50 pm, edited 1 time in total.

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 Post subject:
PostPosted: Mon Aug 13, 2007 7:37 pm 
does it hurt to use one to be safe?


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 Post subject:
PostPosted: Mon Aug 13, 2007 7:40 pm 
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Not really, IF you buy a quality one, that is multi-coated on BOTH SIDES! like a Hoya Super HMC pro1.

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 Post subject:
PostPosted: Mon Aug 13, 2007 7:49 pm 
is the hoya super hmc pro1 the only filter that is multi-coated on both sides? why is the multi-coating on both sides important?


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 Post subject:
PostPosted: Mon Aug 13, 2007 7:50 pm 
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The only real downside in using a UV filter I find is that if the sun's at a certain angle to my lens the flare is pretty bad. It can be reduced by taking the filter off temporarily. This only really happens with my Sigma 10-20mm, no real problems with my 18-135mm kit lens.

Those Hoya Pro filters are good though.

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 Post subject:
PostPosted: Mon Aug 13, 2007 7:58 pm 
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Multicoating on the front-side is important to let all the light through (and not reflect it back to the world).
Multicoating on the backside is important to reduce the ping-pong of rays that are reflected fromt he front lens back to the backside of the filter.
See further explanations here: http://www.thkphoto.com/products/hoya/hoya-02.html
B&W also has good filters, Tiffen is said to be only soso...

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PostPosted: Mon Aug 13, 2007 8:03 pm 
so i should be looking for a hoya 72mm UV filter that is multicoated front and back...

such as?
http://cgi.ebay.com/Hoya-72mm-Super-HMC ... dZViewItem


Last edited by mwahlert on Mon Aug 13, 2007 8:07 pm, edited 1 time in total.

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PostPosted: Mon Aug 13, 2007 8:06 pm 
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Yup! That would be your best choice. I have the same thing on my 18-200mm as I learned the hard way, that it's almost impossible to keep the front lens clean. Especially when you try to make photos in Milford Sound, New Zealand, on a rainy day...

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 Post subject:
PostPosted: Mon Aug 13, 2007 8:09 pm 
check out my post above... would that filter do the trick?

what is the difference between a UV filter and a polarizing filter?

and what happens then with my lens cap...i assume it won't attach to the filter?


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 Post subject:
PostPosted: Mon Aug 13, 2007 8:14 pm 
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Your lens cap will attach to the filter no problem. These filters become more or less invisible in that they just become an integral part of the camera.

Here's the one I'd go for (in fact, I did) -

http://www.thkphoto.com/products/hoya/pro1d-03.html

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 Post subject:
PostPosted: Mon Aug 13, 2007 8:19 pm 
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mwahlert, that filter you linked to is the one. No prob to attach your lens-cap to it as it has a thread-like structure on it's front.
A pol-filter is a totally different kind of beast, very dark (you'll lose 2 stops) and very special. Takes reflections of surfaces, so that water and windows become transparent, but only if the pol-filter is oriented correctly.

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Last edited by Thomas on Mon Aug 13, 2007 8:55 pm, edited 1 time in total.

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 Post subject:
PostPosted: Mon Aug 13, 2007 8:38 pm 
the filter i linked to appears different from the "hoya pro1 digital" spoke of above... same baby with a different name?


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 Post subject:
PostPosted: Mon Aug 13, 2007 8:45 pm 
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"superHMCpro1" = only the best!
See here: http://www.thkphoto.com/products/hoya/coatings.html

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 Post subject:
PostPosted: Mon Aug 13, 2007 8:52 pm 
tombomba2 wrote:
"superHMCpro1" = only the best!
See here: http://www.thkphoto.com/products/hoya/coatings.html


i'm confused though because under the "super hmc" description reads "There is no front female thread, but they do accept our push-on lens caps. "


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