LX/circular or linear polarizer

2005-02-07 Thread Reg Wiest
It¹s slipped my mind . . . Does the metering system in my LX require the use
of a circular polarizer or will a linear one work nicely.
Thanks,
RW



Tokina 800mm F8 screwmount

2005-01-25 Thread Reg Wiest
Does anyone have experience with the 800mm F8 screwmount? I could use it 
with the adapter on my K-mount cameras for wildlife, if it is sharp enough.
I make 8x10s, 11X14s, occasional 16X20s. I might be a lot better off to get
Pentax¹s 1,000mm SMC F8, even though it will cost a lot more.
RW



Pentax 1,000mm F8 K lens

2005-01-17 Thread Reg Wiest
Thanks for the data on the optical quality of the Pentax 1,000mm F8 lens. 
Would anyone know what one would one go for in mint condition with case?
RW



1,000mm F8 Pentax lens

2005-01-16 Thread Reg Wiest
Does anyone have any experience with the Pentax 1,000mm F8 SMC K-mount lens?
I understand it¹s fairly rare. Is it sharp?
RW



Pentax 1,000 F11 mirror lens

2004-06-19 Thread Reg Wiest
How good is the Pentax 1,000 F11 lens? 
RW



photodo lens tests

2003-08-11 Thread Reg Wiest
Does anyone know if photodo still tests lens? There have been no updates 
since June 2000.
RW



8mm Sigma fisheye/exposure

2003-07-09 Thread Reg Wiest
Just picked up a used 8mm Sigma F4 fisheye. 
I suspect that because a circular image is produced in the middle of the neg
and no light reaches the edges of the neg, I must deviate from in-camera
light meter readings (using LX, ME Super, MZ5-N)??? Perhaps, the best bet is
to shoot a roll of film and bracket the exposures to determine how much
compensation is required . . . or use a hand-held light meter.
RW



fish-eyes: Sigma or Zenitar?

2002-10-14 Thread Reg Wiest

I¹m pondering buying a not-too-costly fish-eye lens as it will not be used a
great deal. However, I would like something capable of producing sharp
8X10-inch prints and, once in a while, an 11X14. Does anybody know how good
the Sigma F2.8 multicoated Sigma XQ filtermatic lens is? I believe it¹s a
1980s lens. Perhaps, I¹d be just as well off to buy a new Russian Zenitar
lens??? Does anybody have experience with either of these lenses?
Thanks,
RW




35mm F4 schneider radiogon

2002-09-12 Thread Reg Wiest

I picked up an interesting lens in beautiful condition on eBay ‹ a 35mm F4
Schneider Radiogon preset screw-mount lens. I suspect it was made in the
early ¹60s, but that¹s a guess as I haven¹t been able to find out much about
it, other than it¹s fairly rare. At any rate, it will be interesting to use
this lens on my Spotmatic, although I haven¹t a clue how sharp it is. Does
anybody know anything about this lens, its optical performance, etc.???
RW




Tokina 24 F2.8

2002-05-31 Thread Reg Wiest

I notice there is a Tokina 24mm F2.8 lens for sale on eBay. With under three
days left, it¹s at $75 US. I have one of these lenses and it¹s very, very
sharp. Only negative I can think of is it takes 52mm filters instead of the
49mm that many Pentax lenses take.
RW
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Tamron SP 200-500 F5.6 lens

2002-05-15 Thread Reg Wiest

I¹m not sure how my Tamron SP 200-500 F5.6 lens stacks up against some of 
the other longer zooms being mentioned, but I¹ve been happy with mine.
Manual focus and only available used, it¹s big and heavy ‹ a solid tripod is
a necessity. I hope to use it plenty this summer as I¹ve had it less than a
year, but negs from nature shots taken last fall seemed quite decent with an
8-times lupe.
RW
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photo.do tests

2001-11-13 Thread Reg Wiest

I¹m wondering if photo.do is still testing lenses as the Web site indicates
no updates since June 5, 2000. I e-mailed them a while back inquiring about
this but didn¹t receive a reply.
RW
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Tripod collar/K 300 F4

2001-10-02 Thread Reg Wiest

Does anyone know if someone manufactures a tripod collar that would fit my
old Pentax K 300 F4? This is a big, heavy lens that I like optically but
find extremely difficult to use on a tripod. My Tamron 200-500 F5.6 is
heavier yet, but having a tripod collar makes it a joy to use on a tripod ‹
at least compared to my 300.
RW
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200 F2.5-1.7AF combo

2001-09-20 Thread Reg Wiest

I recently bought a SMC Pentax 200 F2.5 tele. I¹m wondering what sort of 
quality to expect with a 1.7AF convertor for my MZ5-N. I haven¹t bought the
convertor yet.
RW
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Tamron 200-500 SP

2001-09-18 Thread Reg Wiest

Does anyone have experience and/or opinions on the Tamron SP 200-500 F5.6 
zoom lens? I have a couple of other SP lenses (17 F3.5 and 90 F2.5), which
deliver great results. When was this lens manufactured?
RW
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