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07-19-2009, 02:33 PM   #1
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Whats With This Lens ???

Has anybody tries one of these. If it is sharp it could be a useful very cheap ultra zoom.

It is big and heavy, but if it works. Set your ISO to 1000+ and let her rip :-)

Bower | 650-1300mm f/8-16 Manual Focus Lens for Pentax | B&H

wll

07-19-2009, 02:45 PM   #2
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Looks like it could do double duty as a "personal defense paraphernalia" Sorry don't know anything about it.

NaCl(I wouldn't want to drop that sucker on my toe)H2O
07-19-2009, 03:03 PM   #3
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Looks like a more modern-ish version of my old Spiratone 400mm f/6.3 or Cambron 500mm f/8 (plus zoom function, of course). The lack of aperture ring is odd, though. Even my Cambron can stop down to f/22.

Edited to add: That Bower weighs more than twice what either of mine do...1.5 lb vs 4.4 lb.

Last edited by Duck Dodgers; 07-19-2009 at 03:11 PM.
07-19-2009, 06:24 PM   #4
wll
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QuoteOriginally posted by Duck Dodgers Quote
Looks like a more modern-ish version of my old Spiratone 400mm f/6.3 or Cambron 500mm f/8 (plus zoom function, of course). The lack of aperture ring is odd, though. Even my Cambron can stop down to f/22.

Edited to add: That Bower weighs more than twice what either of mine do...1.5 lb vs 4.4 lb.
I have a Spiratone 400mm f6.3 and it is a pretty sharp lens. I'd like to see how this one performs.

23 Inches long and 4.4lb's. It is quite the beast !!!!


wll

07-19-2009, 06:36 PM   #5
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I have this lens! My brother bought it for me over a year ago as a birthday present. It is utterly horrible, and it's nickname is BAZ - Big Awful Zoom.

QuoteOriginally posted by Duck Dodgers Quote
Looks like a more modern-ish version of my old Spiratone 400mm f/6.3 or Cambron 500mm f/8 (plus zoom function, of course). The lack of aperture ring is odd, though. Even my Cambron can stop down to f/22.

Edited to add: That Bower weighs more than twice what either of mine do...1.5 lb vs 4.4 lb.
No aperture ring because it's a fixed-aperture lens. 650mm is f/8, 800mm is f/9.5, etc. And boy is it dim.

Last edited by flippedgazelle; 07-19-2009 at 06:44 PM.
07-19-2009, 06:40 PM   #6
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I think you'll find it is more then likely a Samyang. Similar lenses are listed on Oz Ebay but with no name to them.
07-19-2009, 07:04 PM   #7
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Marketed under a few names ---

It is sold under the name Rokinon/Samyang/Phoenix and Vivitar Series 1 along with others.


wll

Last edited by wll; 07-19-2009 at 07:22 PM.
07-19-2009, 07:07 PM   #8
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QuoteOriginally posted by flippedgazelle Quote
I have this lens! My brother bought it for me over a year ago as a birthday present. It is utterly horrible, and it's nickname is BAZ - Big Awful Zoom.



No aperture ring because it's a fixed-aperture lens. 650mm is f/8, 800mm is f/9.5, etc. And boy is it dim.
Flippedgazelle,

I realize it would be dark at f16, but if it is on a tripod is it sharp ?

wll

07-19-2009, 07:20 PM   #9
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QuoteOriginally posted by wll Quote
Flippedgazelle,

I realize it would be dark at f16, but if it is on a tripod is it sharp ?

wll
Nope, not even on a tripod. The glass quality is just too poor.

It is, however, kind of a fun lens to use. There is a target-shooting aspect of using it that is entertaining.

I'll get some samples up...
07-19-2009, 07:29 PM   #10
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These are all between 800-1100mm, handheld, ISO 800-1600, PP'd.





















07-19-2009, 07:43 PM   #11
wll
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QuoteOriginally posted by flippedgazelle Quote
These are all between 800-1100mm, handheld, ISO 800-1600, PP'd.
These don't look to bad to my eyes ?, it sounds like the lens is a pain to use though.

I still will try to pick one up for the fun of it used.

wll
07-19-2009, 07:54 PM   #12
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QuoteOriginally posted by wll Quote
These don't look to bad to my eyes ?, it sounds like the lens is a pain to use though.

I still will try to pick one up for the fun of it used.

wll
I don't think the shots look bad, either. It's all about expectation. If you had said in your first post, "this lens is so bad it's like shooting through a Coke bottle", I would have said the lens is actually pretty decent for what it is. I just didn't want to get your hopes up by saying that the lens could actually be, you know, useful.

The photos of the cormorants are, by far, my best cormorant pictures. Why? Because I can't get close enough with my 70-300mm lens.

The last 8 photos were taken with a K100D; the 1st three were with the K2000, with the OME53 eyecup, which helps a bit with focusing.

I find that I mostly use the lens at 800mm. That seems to be sort of a sweet spot for IQ, and also for me to be able to hand-hold it @ ISO800-1600 fairly reliably.

When I get what I feel to be a good shot from the lens, I feel a real sense of accomplishment, because of the effort involved.
07-19-2009, 08:02 PM   #13
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QuoteOriginally posted by flippedgazelle Quote
I don't think the shots look bad, either. It's all about expectation. If you had said in your first post, "this lens is so bad it's like shooting through a Coke bottle", I would have said the lens is actually pretty decent for what it is. I just didn't want to get your hopes up by saying that the lens could actually be, you know, useful.

The photos of the cormorants are, by far, my best cormorant pictures. Why? Because I can't get close enough with my 70-300mm lens.

The last 8 photos were taken with a K100D; the 1st three were with the K2000, with the OME53 eyecup, which helps a bit with focusing.

I find that I mostly use the lens at 800mm. That seems to be sort of a sweet spot for IQ, and also for me to be able to hand-hold it @ ISO800-1600 fairly reliably.

When I get what I feel to be a good shot from the lens, I feel a real sense of accomplishment, because of the effort involved.
Thank you flippedgazelle, your post have been very helpfull.


wll
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