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04-15-2012, 02:40 AM   #16
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Or in the lenses. Even if the two lenses are designated f/3.5@18mm, it doesn't mean they are exactly the same. If you get different results using the same lens on both bodies, then it's variation.

02-16-2013, 04:35 PM   #17
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I find this annoying. Is it only visible using the 18-135mm lens?
02-16-2013, 04:43 PM   #18
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QuoteOriginally posted by memo90061 Quote
I find this annoying. Is it only visible using the 18-135mm lens?
It happens anytime you limit the light entering the camera. Small apertures on any lens or using polarizing or ND filters.

Edit - Let me add that it only happens when you restrict the light.

Last edited by bullitt_60; 02-16-2013 at 04:54 PM.
02-16-2013, 06:07 PM   #19
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QuoteOriginally posted by Sage97 Quote
Tamron came in today and there is absolutely zero graininess but..........holy crap this lens is huge. I'll have to lift weights!
Great lens and it was larger than I imagined.
I sold my copy when I obtained the DA300.

02-17-2013, 11:12 AM   #20
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There was an interview with a Pentax engineer who stated that the K-5 had a slightly darker focusing screen than most DSLRs. This was done purposefully to make it easier to manually focus and see DOF. He suggested that it was a more enthusiast oriented focusing screen as it was assumed that a camera at the level of the K-5 was going to be used with faster glass than a consumer class body. Most DSLRs' focusing screens are optimized for lenses with max apertures of f4 and slower.

IIRC, this was posted on the DC Watch Impress site a short time after the K-5 was released.

Scott
02-17-2013, 12:15 PM   #21
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Thank you for the reply. That's what I thought. I'm thinking of selling the Pentax 18-135mm, and just stay with the Sigma 30mm F1.4. I would like something wider and faster though. Pentax 14mm F2.8 is so expensive for me though.
02-10-2016, 01:37 AM   #22
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Pentax K5 Viewfinder Solved

Ok Guys, I used to own Pentax's 6x7 medium format so I have a lot of respect for Pentax. But I had the same problem when I got my K5. Looked like tiny dots, but I should have known better. Here's what you're seeing as I tested it with the lens off to eliminate if it was the lens, 'and it ain't'. I even called Pentax tech support and they weren't sure, probably because I was describing it wrong, just like everyone here has posted. A comparison example would be to a Glossy Photo compared to a Matte finish. Not sure why they deliver it this way, but could be to help diffuse sunlight, etc., Yes, it won't show up on the actual photo you take. So you don't need to knock yourself out trying to examine the lens for this specific detail or pay to be shipping your cam body back to Pentax, etc..

It's that the Pentax K-5 ships with a Natural-Bright-Matte III screen installed. You can read the full article on Imaging resources site. Pentax K-5 Review: Full Review - Viewfinder

Not quite sure if there are other Screen Options though.

Hope this helps,

Captn Bob
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