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07-06-2010, 07:35 PM   #31
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QuoteOriginally posted by Banjo Quote

Very interesting quote from the link you gave me:

"the ability to focus through our viewfinders (if you do not have a split screen) can be difficult, but just set the aperture of the lens at f8 and focus to infinity and that it is, you got a P&S camera. Just point and everything will be in focus."


This would be great for discreet street photography or just leaving the camera with the video running on a tripod.

07-07-2010, 11:06 AM   #32
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That's not unique to this lens - Google the term "hyperfocal". Also see the discussion the General Photography forum on this site for more on hyperfocal focusing. Any wide angle lens stopped down a bit will do this to some extent, because DOF is large on wide angles and small aperture. But while everything might be "in focus" as far as some DOF calculator is concerned - which might be assuming small prints or ordinary web viewing - it's not like everything is *really* equally sharp if you're pixel peeping.
07-07-2010, 06:25 PM   #33
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Over on the Pentax Video area here on the Forum, bymy141 posted a short video using the 10-17 that is wonderful. You need to take a look.... its the cathedral in St Petersburg, Russia.
07-07-2010, 06:41 PM   #34
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QuoteOriginally posted by interested_observer Quote
Over on the Pentax Video area here on the Forum, bymy141 posted a short video using the 10-17 that is wonderful. You need to take a look.... its the cathedral in St Petersburg, Russia.
While this lens is great in most regards, do note though that it does suffer from purple fringing in high contrast scenes. That was the nly reason I ruled it out. The rectalinear distortions shape up nicely though when using the profiles in post-processing.

JayT

07-07-2010, 09:56 PM   #35
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The early version of the wide angle zoom Tokina 20-35mm is a great undiscovered gem. Cheap because people don't know how good it is. It's also autofocus, an added bonus. This same lens also comes labelled as a Vivitar.

The later versions are more plasticky and also good, but not as good as the first generation.
07-08-2010, 04:23 AM   #36
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QuoteOriginally posted by tranq78 Quote
The early version of the wide angle zoom Tokina 20-35mm is a great undiscovered gem. Cheap because people don't know how good it is. It's also autofocus, an added bonus. This same lens also comes labelled as a Vivitar.

The later versions are more plasticky and also good, but not as good as the first generation.
I've found a few great reviews on it. It was fairly expensive when it came out, but seems to have been forgotten. Maybe because it still hasn't been uploaded for review in the third-party lens database at PF?
02-02-2011, 02:17 AM   #37
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Samyang (Rokinon/Bower) 14/2.8 is pretty impressive. I just got mine and haven't looked at the pics closely yet but from the reviews it is pretty much the class leader in sharpness, the UMC version is pretty good with flare, the weakness being the moustache distortion but where it matters it is fixable in PTLens

02-02-2011, 01:43 PM   #38
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Vivitar 19mm

I managed to capture a Vivitar 19 mm f3.8 A (AE lens) off Ebay a while back and have been pleasantly surprised at the photo quality. It is a bit slow at f3.8( which ends up being f4 on the body) so I have been getting better results on our new K-x than I did on the K100D. I am also surprised at the angle of view which should be less than the 18-55 II lens but in actual use the 19 exceeds the view of the zoom. Another difference in use is the Vivitar going to infinity right after 5 feet. So it is great to put on the camera and leave on infinity and take snapshots of family indoors mounted on the K-x. I also feel the shots are of better resolution than what the 18-55 can turn out. But this is all my 2 cents from my experience with this lens. I have read that it may be related to Tokina's famous 17 but my serial number lies in the Cosina range from that reference provided by CameraQuest.

Alan W.
02-02-2011, 10:17 PM   #39
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QuoteOriginally posted by kacansas03 Quote
I managed to capture a Vivitar 19 mm f3.8 A (AE lens) off Ebay a while back and have been pleasantly surprised at the photo quality. It is a bit slow at f3.8( which ends up being f4 on the body) so I have been getting better results on our new K-x than I did on the K100D. I am also surprised at the angle of view which should be less than the 18-55 II lens but in actual use the 19 exceeds the view of the zoom. Another difference in use is the Vivitar going to infinity right after 5 feet. So it is great to put on the camera and leave on infinity and take snapshots of family indoors mounted on the K-x. I also feel the shots are of better resolution than what the 18-55 can turn out. But this is all my 2 cents from my experience with this lens. I have read that it may be related to Tokina's famous 17 but my serial number lies in the Cosina range from that reference provided by CameraQuest.

Alan W.
Hi Alan:

That really sounds like a great pickup--I have been wondering about that lens myself, for a while now. Have you poset any shots @ our forum yet? I would love to see them if you can direct me to them.
02-02-2011, 11:20 PM   #40
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At your budget, perhaps either a Tokina 17 3.5 or a Vivitar 19 3.8 would fit nicely.
02-04-2011, 01:11 PM   #41
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QuoteOriginally posted by Jewelltrail Quote
Hi Alan:

That really sounds like a great pickup--I have been wondering about that lens myself, for a while now. Have you poset any shots @ our forum yet? I would love to see them if you can direct me to them.
I have images that it would nice to remove from the camera. So I have to get busy and upload from the new K-x into the computer to size them for the forum. I have been having too, too much fun with the high ISO speeds. Plus I finally obtained a gimbal and just yesterday received the "magic arm" that can support the camera body behind my long (32") 800 mm which will finally make photos with that long lens quite easy without having to use high shutter or high ISO or both. So I have been busy playing with new equipment here in the house. I have given up on the glaciers receding outdoors and there are No birds, small animals and few deer so my photo subjects are buildings, darn. I will post some 19 mm photos soon.
Alan W.
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