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10-07-2011, 02:21 PM   #1
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Smallest filter sized zooms

Are there any lenses in the range 17-70mm and 18-250mm range that has a small sized filter like 49mm or what is the best smallest available out there. I am obscessed after using 49mm sized primes .

Are there any alternatives for the above range mentioned above (in the same budget), I see some threads on the same in the past, just thought there could be some updates in the market.

thanks


Last edited by sany; 10-07-2011 at 02:27 PM.
10-07-2011, 02:29 PM   #2
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The first one that I thought of was the SMC Pentax-F 70-210mm f4-5.6. Pentax also made the DA 50-200mm f4-5.6 WR version with a 49mm filter. If I had one of the other versions of this lens, I'd try a stepdown ring to see if it worked.
10-07-2011, 02:36 PM   #3
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More lenses from Pentax. Not many lenses I'd consider in this bunch:

A and F 35-70mm f3.5-4.5
A, F and FA 35-80mm f4-5.6
M 40-80mm f2.8-4
M 75-150/4
FA 70-200mm f4-5.6
A, F and FA 80-200mm f4.7-5.6
10-07-2011, 02:39 PM   #4
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Original Poster
thanks Dave, but I was looking in the same zoom range mainly with the wide angle bit.

10-07-2011, 02:50 PM   #5
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QuoteOriginally posted by sany Quote
I was looking in the same zoom range mainly with the wide angle bit.
It's very difficult to design wide-angle lenses with small front element, particularly zoom lenses.
10-07-2011, 07:10 PM   #6
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If you're basing your comparison on primes, I hope you realize that even if there had ever been such a lens, the lens would be super-slow, and probably perform poorly. Those seem like big sacrifices to use 49mm filters.

Paul
10-07-2011, 08:48 PM   #7
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My happy medium is the kit lenses with 52mm filters. I've settled on 52 for a full range of items, like cPL split-neutral and a close-up 'filter'. This works with 18-55 and 50-200 (though not the 50-200WR for some odd reason), and many of my old-fave Rikenon lenses (mostly primes but also my fun 70-150 f/4 XR). And I have a 49-52 step ring for my SMC primes that often use 49mm filters.. but that messes up the hoods. I was 'forced' to sell off my 50-200WR for that reason, being forced to keep the hood on or off when using filters; why did Pentax do this??

As noted elsewhere, below 52mm is impractical for a zoom esp. a wide-angle zoom.
10-08-2011, 08:09 AM   #8
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Buy one set of 77mm filters. Buy a 77mm rubber collapsable hood. Buy step-up rings. Buy the lens that does what you want it to do. Be happy.

10-08-2011, 09:07 AM   #9
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Another Size?

Hello Sany,
I had the same problem (see my sig!) with many 49mm (filter size) M lenses and the resulting collection of many 49mm filters, mostly from the age of film cameras.
But since using digital and post-processing, 90% of the filters are unused. All I ever need is a quality CPL and a UV on each lens. Oh, I guess a cross-screen (star) or maybe a soft-focus would be handy occasionally for an effect, but I don't miss them.
Close-up filters? I'd only use them on a Macro lens, the M 100mm f4.0 takes a 49mm size. I doubt I'd use a close-up filter on a wide-angle zoom.
So I decided to invest in one more size filter and hit upon 67mm. The DA16-45mm F4.0 takes that size and my research shows that many other zooms (and a few f2.8 primes) both Pentax brand and other compatable names, use 67mm filters.
So for the cost of one 67mm CPL and UV, I'm able to choose from an wide array of other lenses. It's turned out to be a good choice and with the exception of the odd 52mm or 58mm filter/lens, all I need to carry.
It's not only the cost of buying filters in many sizes, but remembering to take them and space in the kit bag! Now, with two primary sizes, life is much simpler.
Just an idea,
Ron
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