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02-13-2016, 04:49 PM   #1
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Re: Lens Hoods

Hello fellow Pentaxians,

First off I apologizie if this has been asked previously.

My question is: How long should a lens hood be? I see different size hoods so how do you determine which hood to use? Does it have to do with FL? Could I use the same hood on a 35mm and a 50mm? Is this why hoods on telephoto lenses are huge?

I like to buy hoods for all my lenses that don't come with one. How do I go about doing this?

Thanks

02-13-2016, 04:54 PM   #2
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hood length will depend upon the focal length of the lens - especially when you get into the wider lenses; you'll end up with vignetting if you aren't careful...

depending upon the lens, I try to get either the hood that was designed for the lens (OEM or replacement) or just a metal hood that'll screws into the filter threads...
02-13-2016, 05:06 PM   #3
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I too like the OEM hood, when possible. I also like the 3-stage type of folding rubber hood.
02-13-2016, 05:39 PM   #4
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If you are talking about the DA 35mm (plastic fantastic) and DA 50mm (nifty fifty) lenses then no, they need different hoods. First because they have a different sized hood mount. Second, I have both and picked up the recommended (from here on the forums) collapsible lenses and they are very different in size and "length".

02-14-2016, 10:37 AM - 1 Like   #5
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In the spirit of full disclosure...I believe any lens hood is better than no hood. So yeah, you could use the same hood for a 35mm lens and a 50mm lens. That doesn't mean the hood will be optimal for either lens though. Like you, I prefer to have hoods for all my lenses. My wife and I like to visit garage sales and estate sales. Whenever I find a decent lens hood for a good price...I buy it. The vast majority of the hoods I find in these situations are marked for use with a 35mm camera. But when you're shooting with an APS-C DSLR, the angle of view is different so you need to take that into account. That means I can use a hood marked for a 50mm lens on my 35mm lens. And I can use a hood marked for an 85mm lens on my 50mm lens. And I can use a hood marked for a 135mm lens on my 85mm lens...and so on and so on...
02-16-2016, 08:11 AM   #6
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There are some aftermarket replacements for bayonet hoods, some of the more common lenses have them, and they're less expensive. You can probably find some by searching the forums here. I bought a replacement for the 55-300, but had to buy OEM for the 18-135 (that was 5 years ago). For older M-or A- series lenses you may need to use the collapsing rubber hoods which screw into the filter ring.
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