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12-01-2011, 02:12 PM   #1
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Lens hoods

Guys...Is there one hood that works for both the 18-55 and 55-300 kit lens? If so, or not, can you steer me in the right direction. Thanks

12-01-2011, 02:18 PM   #2
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Nope. 18-55 is 52mm and 55-300mm is 58mm

The 18-55 takes the PH-RBA 52mm and the 55-300 takes the PH-RBG 58mm

Check ebay if you don't want to spring for the Pentax one. The hood on my DA L 55-300 is a generic ebay one and it works fine.
12-01-2011, 02:19 PM   #3
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Here's an example of a round rubber hood: 58mm Rubber Lens Hood for Standard & Wide & Tele Focus | eBay

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12-01-2011, 02:32 PM   #4
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Cheap solution: one 58mm rubber hood and one 52-58mm step-up ring.

12-01-2011, 02:40 PM   #5
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Thanks...and one more thing..I shot a lot outdoor scenery...can you recommend a filter i might need?
12-01-2011, 03:41 PM   #6
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The hoods for the short-zoom and long-zoom lens are different and there are good reasons for that. It is better to get the right hood for the right lens, otherwise, you will not get the best characteristics (contrasty and flare control) from the lens as it should.
12-01-2011, 03:58 PM   #7
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QuoteOriginally posted by emulsify Quote
Thanks...and one more thing..I shot a lot outdoor scenery...can you recommend a filter i might need?
Invest in a good circular polarizer.
12-01-2011, 04:32 PM   #8
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QuoteOriginally posted by boriscleto Quote
Invest in a good circular polarizer.
Or save a few bucks by getting a linear polarizer.

12-01-2011, 05:57 PM   #9
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Do recommend that you get a hood for each lens. They are different lengths and diameters at the outer end for very good reasons.

The generic hard plastic ones from eBay are fine IMHO. When I did pick up a genuine Pentax hood for my DAL 18-55 the slide portion of the generic one fit exactly into the genuine Pentax one (that the seller neglected to tell me had no slide).

JJC LH-RBA 52mm reviews - Pentax Camera Accessories: Database and Reviews

JJC LH-RBG 58mm reviews - Pentax Camera Accessories: Database and Reviews
12-01-2011, 06:43 PM   #10
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Thanks again everyone.
12-01-2011, 08:47 PM   #11
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QuoteOriginally posted by Mike Cash Quote
Or save a few bucks by getting a linear polarizer.
It's my understanding that they affect AF.

I know you mostly use MF lenses and a split prism screen but if you have AF lenses, can you share the AF experience?

Last edited by sterretje; 12-01-2011 at 10:57 PM.
12-02-2011, 11:58 AM   #12
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I bought this one for my 18-55 kit lens.

http://www.amazon.com/gp/product/B003G5A2RW/ref=oh_o00_s00_i00_details

Love it, just as good as the equivalent Pentax name brand one.

I put the part that opens to the bottom, still don't know what it's for.
12-02-2011, 12:11 PM   #13
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QuoteOriginally posted by aleonx3 Quote
The hoods for the short-zoom and long-zoom lens are different and there are good reasons for that. It is better to get the right hood for the right lens, otherwise, you will not get the best characteristics (contrasty and flare control) from the lens as it should.
What about the 50-200 kit lens? This is the same size (52mm) as the 18-55 - should I use the same hood?
12-02-2011, 12:16 PM   #14
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TechGuru - its a removeable tab, so you can reach in and adjust a polarizing filter (without removing the hood).

Redundant Banker - I've been sharing the 18-55 hood between my kit lens and my 50-200 lens and it seems to work ok. I've heard the stock 50-200 hood causes some vignetting, but have no actual experience with it.
12-02-2011, 12:40 PM   #15
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If you plan to use a polarizer, it is a lot easier to use a srew-in type hood and place it on the filter threads. This way you can rotate the filter by rotaing the hood instead of using your fingernails through the small hole in the fixed bayonet hood. There are many inexpensive metal hoods in eBay and they are much more durable than plastic.

Regarding linear vs. circular polarizers, the linear ones can cause both autofocus issues and incorrect exposures because on certain angles the combination of filter/mirror/sensor can dim the light to a level below optimal AF. A circular filter will spread the light in all directions so the sensors will get plenty to work OK.

One trick for exposure problems with linear filters is to rotate the filter while looking at the autoexposure data. Most scenes will register more or less 1 stop drop at the highest polarization angle. If you are geting significantly more than that, then propably you'll under expose so compensate accordingly.
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