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Forum: General Photography 4 Days Ago  
What's Been Your Experience with KEH.com Lately? Mine... not so good
Posted By ivanvernon
Replies: 32
Views: 743
I have used UsedPhotoPro and Keh as well, and both have provided excellent service. Keh has a guaranteed satisfaction policy, so if you don't like it you can send it back, not much risk I guess.
Forum: Pentax SLR Lens Discussion 4 Days Ago  
The Bokeh Club
Posted By ivanvernon
Replies: 16,726
Views: 1,502,515
My wife calls our FA 77mm the magic lens.
Forum: Pentax Medium Format 5 Days Ago  
Post your medium format photos!
Posted By ivanvernon
Replies: 13,776
Views: 2,303,805
I could not locate this series of photos on FLIKR. I saved one of the photos to Documents file on my own local computer and then checked for the photo for data. The information provided was 35mm. Why or for what reason I do not know.
Forum: Pentax Medium Format 5 Days Ago  
Post your medium format photos!
Posted By ivanvernon
Replies: 13,776
Views: 2,303,805
Yes, that is what I did, and it showed as 35mm, not sure if I did something wrong. I thought it might be some kind of artifact of the post-processing program used.
Forum: Pentax K-3 6 Days Ago  
K3 sample shots ... post here !
Posted By ivanvernon
Replies: 10,550
Views: 1,291,790
Thank you. I am liking the way the Mamiya macro lens reproduces colors, especially reds.
Forum: Pentax SLR Lens Discussion 6 Days Ago  
prime, prime, everywhere a prime...
Posted By ivanvernon
Replies: 7,884
Views: 395,997
I have the Kiron (Kino Precision) 105mm f 2.8 1:1 macro, which is optically the same as the Lester Dine lens, just differently branded. It's a great lens, all metal and a bit heavier than it looks. Unfortunately, the lettering on the lens is not engraved; it seems only to be sprayed on, and is rapidly wearing away on my copy. I have not seen the Dine version, so do not know whether it has improved lettering over the Kiron version. I guess this is a trivial point, but when you spend real dollars for a quality lens it is nice for the lettering to remain legible.

I also have the Tokina AT-X 90mm f 2.5 1:2 macro, which has a shared optical heritage with the Tamron and Vivitar macros mentioned in this thread. I believe the Tokina, Tamron, and Vivitar versions are virtually identical from an optical standpoint, although not manufactured by the same lens maker. I like using the Tokina more than the Kiron/Dine macro because of its lighter weight and easier focussing (at least for me), and because with my flower photography 1:2 macro is good enough. Both the Tokina/Tamron/Vivitar and the Kiron/Dine lenses seem to be widely accepted as being among the top macro lenses on the market but I have never seen a review directly comparing them. Both are capable of producing excellent macro images.

Beyond these two macro lenses, I have recently acquired a copy of the renowned Carl Zeiss 100mm f 2.0 Planar T* 1:2 macro, which has been adapted for K mount use. This lens is well described here: Zeiss 100mm f/2 Makro Classic Lens Review In addition, I have also recently ordered from Keh an "ugly" copy of the Mamiya 645 120mm f 4.0 1:1 macro. This lens is sometimes touted as offering near the optical quality of the Carl Zeiss 100mm while also offering 1:1 macro coverage. This lens is reviewed here: Mamiya M645 Macro MF 120mm f/4 While I lack enough lens knowledge to be a very good reviewer, I am hoping to make and share some comparisons between the Zeiss and Mamiya lenses, both of which I use on the K-1 and occasionally perhaps on the K-3. (The Mamiya medium format lenses cannot be adapted to the Pentax N/D/Z cameras because of incompatible registry distances, but work well on the K-1 using an inexpensive adapter.)
Forum: General Talk 6 Days Ago  
Your latest acquisition
Posted By ivanvernon
Replies: 17,487
Views: 1,190,624
Just picked up Mamiya 645 120mm f 4.0 macro ugly (at very favorable price) from Keh. This lens has been described by some reviewers as being as sharp as the Zeiss 100mm f 2.0 Planar macro, though not as fast. I have the Zeiss lens also, so maybe can make some comparisons.
Forum: Pentax Medium Format 6 Days Ago  
Post your medium format photos!
Posted By ivanvernon
Replies: 13,776
Views: 2,303,805
Love your work in general, including this portraiture. Good choice of model's strong primary clothing colors. Interesting choice of super A-35mm with the 645D. I am sure that not every model would have been happy with such a sharp lens focussed so closely! With the 645D, I would have normally expected a lens of 100mm+, like maybe your 645-150 or 67-105 or 67-165, but the 35mm seems to work very well. Could you comment on lens choice?
Forum: Pentax SLR Lens Discussion 6 Days Ago  
The Bokeh Club
Posted By ivanvernon
Replies: 16,726
Views: 1,502,515
Flower bokeh from our garden.
Forum: Pentax SLR Lens Discussion 6 Days Ago  
The Bokeh Club
Posted By ivanvernon
Replies: 16,726
Views: 1,502,515
Red celosia with lamb's ear.
Forum: Pentax SLR Lens Discussion 6 Days Ago  
The Bokeh Club
Posted By ivanvernon
Replies: 16,726
Views: 1,502,515
Bokeh from our flower garden.
Forum: Pentax Medium Format 6 Days Ago  
Post your medium format photos!
Posted By ivanvernon
Replies: 13,776
Views: 2,303,805
Dahlia flower bud waiting to blossom.

---------- Post added 10-15-19 at 02:48 AM ----------

Dahlia with fly from our garden.
Forum: Pentax Medium Format 6 Days Ago  
Post your medium format photos!
Posted By ivanvernon
Replies: 13,776
Views: 2,303,805
We are enjoying the last few weeks of our flower gardens before the rapidly approaching killing frost--90 percent chance of frost by October 27th or thereabouts.
Forum: Pentax Medium Format 6 Days Ago  
Post your medium format photos!
Posted By ivanvernon
Replies: 13,776
Views: 2,303,805
Scene across street from my house.
Forum: Lens Clubs 6 Days Ago  
The F Club!
Posted By ivanvernon
Replies: 910
Views: 198,308
Maybe clematis "Together"?
Forum: Lens Clubs 6 Days Ago  
The 15mm Limited controls my mind - club
Posted By ivanvernon
Replies: 11,336
Views: 1,905,431
Inventive photo shoot setup. :>) I like it, and it is giving me some ideas.
Forum: Pentax K-3 6 Days Ago  
K3 sample shots ... post here !
Posted By ivanvernon
Replies: 10,550
Views: 1,291,790
Here are a few flowers with the K-3 and the (adapted) Mamiya 645 C 80mm f 4.0 macro lens. I am liking this Mamiya medium format lens on APS-C for both clarity and color fidelity when photographing flowers.
Forum: Lens Clubs 6 Days Ago  
The M Club!
Posted By ivanvernon
Replies: 7,503
Views: 1,109,824
OK, not bad, but not quite like your farrier with the horse and dog, which is really excellent.
Forum: Pentax SLR Lens Discussion 6 Days Ago  
The Bokeh Club
Posted By ivanvernon
Replies: 16,726
Views: 1,502,515
Dahlia bokeh

KIT: Pentax K-3 with Mamiya 645 C 80mm f 4.0 macro
Forum: Lens Clubs 6 Days Ago  
Mamiya Lens Club
Posted By ivanvernon
Replies: 99
Views: 5,850
Here are a few shot with the K-1 and the Mamiya 645 C80mm f 4.0 macro (medium format lens).
Forum: Lens Clubs 6 Days Ago  
The M Club!
Posted By ivanvernon
Replies: 7,503
Views: 1,109,824
Magnificent . . . no reason not to be thrilled with these results!
Forum: Pentax SLR Lens Discussion 6 Days Ago  
prime, prime, everywhere a prime...
Posted By ivanvernon
Replies: 7,884
Views: 395,997
Dahlias awaiting first frost . . .
Forum: Pentax Medium Format 6 Days Ago  
Post your medium format photos!
Posted By ivanvernon
Replies: 13,776
Views: 2,303,805
Shots from recent trip to country.
Forum: Lens Clubs 6 Days Ago  
*Macro* lens club
Posted By ivanvernon
Replies: 3,513
Views: 468,107
Zennias the medium format way . . .
Forum: Pentax SLR Lens Discussion 6 Days Ago  
prime, prime, everywhere a prime...
Posted By ivanvernon
Replies: 7,884
Views: 395,997
Highway scene taken on a recent trip into Cleveland, Ohio.

KIT: K-1 with (adapted) Pentax 67 200mm f 4.0.
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