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Forum: Pentax SLR Lens Discussion 02-10-2018, 07:53 AM  
looking help: whale photography baja california.
Posted By fwcetus
Replies: 86
Views: 5,764
Wishing you a speedy and 100% successful recovery, Aslyfox . . .
Forum: Pentax Price Watch 02-03-2018, 06:34 AM  
Pentax Binocular Deal
Posted By fwcetus
Replies: 14
Views: 976
I bought my wife the 6.5x model, and they're good not just for bugs, flowewrs,,etc., outdoors, but they're also great for museums, where sometimes you want to see
the detail in something closer but are otherwise restricted from physically getting closer.. And the're fine at concerts, too, as "opera glasses".
Forum: Pentax SLR Lens Discussion 01-10-2018, 12:08 PM  
Soligor Bokina?
Posted By fwcetus
Replies: 20
Views: 1,371
Very interesting scans from Soligor, and I guess we now know that the lens in quesion is not a "Bokina" sibling. However,we also would think that it likely is an excellent macro lens to use. :)

I was a bit curious about the 1:1 macro adapter for the VS1 90/2.5 Macro in the last image posted --



What caught my eye was the blue lettering used on it -- I have never seen one of these with anything other than white lettering (e.g, on one of mine) --



:confused:
Forum: Pentax SLR Lens Discussion 01-06-2018, 04:32 PM  
Cosina 70-210 f2.8-4 MC Macro lens information?
Posted By fwcetus
Replies: 14
Views: 1,186
Understood. (I know that I often have trouble drawing that line sometimes.) :lol:
Forum: Pentax SLR Lens Discussion 01-05-2018, 09:32 PM  
Cosina 70-210 f2.8-4 MC Macro lens information?
Posted By fwcetus
Replies: 14
Views: 1,186
So, did you win the auction ? :hmm: :)
Forum: Pentax SLR Lens Discussion 01-02-2018, 03:09 PM  
Cosina 70-210 f2.8-4 MC Macro lens information?
Posted By fwcetus
Replies: 14
Views: 1,186
Agreed. Good point. :cool:
Forum: Pentax Price Watch 01-02-2018, 10:21 AM  
Black ME F body on eBay
Posted By fwcetus
Replies: 4
Views: 521
Tested and working black ME F body with Digital Data M back on eBay --

Asahi Pentax ME F Black SLR w/Digital Data M Checked Working "Good" [3606062] 9786138601227 | eBay

It's from Japan, but the shipping is free. The Digital Data M is not rare, but a BLACK ME F is quite hard to find, especially in working condition.

The Buy It Now price is not cheap (but, I think fair), and there's a Make an Offer option available.

:cool:
Forum: Pentax SLR Lens Discussion 01-01-2018, 08:45 AM  
Cosina 70-210 f2.8-4 MC Macro lens information?
Posted By fwcetus
Replies: 14
Views: 1,186
I'm even a bit curious about the lens "title", as named on the front cover of my CZJ 70-210/2.8-4 lens --



I wonder about the significance (if any) of the "Series II" -- was there perhaps an earlier Cosina version, possibly similar to the VS1 70-210 V4 ?

:hmm:

:)
Forum: Pentax SLR Lens Discussion 01-01-2018, 08:26 AM  
Cosina 70-210 f2.8-4 MC Macro lens information?
Posted By fwcetus
Replies: 14
Views: 1,186
Ah, yes, and ~that~ is the same lens model that I posted images about above. Thanks for "tying the two threads together". :)

As for Cosina/Zeiss lenses, some of the newer Zeiss optics are made by Cosina -- so such a collaboration wasn't just limited to just the earlier CZJ days...Cosina can ~indeed~ produce some very fine lenses when the specs call for it.
Forum: Pentax SLR Lens Discussion 01-01-2018, 07:16 AM  
Cosina 70-210 f2.8-4 MC Macro lens information?
Posted By fwcetus
Replies: 14
Views: 1,186
That seems very much like the Carl Zeiss Jena 70-210/2.8-4, which seems much like the VS1 70-210 V6 --

Vivitar Series 1 70-210mm Line Lens Reviews - Vivitar Lenses - Pentax Lens Review Database

Here is the CZJ 70-210/2.8-4 (which is also most likely a Cosina-built lens) --









Forum: Pentax SLR Lens Discussion 12-31-2017, 08:27 PM  
Cosina 70-210 f2.8-4 MC Macro lens information?
Posted By fwcetus
Replies: 14
Views: 1,186
I'm curious enough that I wouldn't mind seeing imgaes of it . . . :confused:
Forum: Flashes, Lighting, and Studio 12-31-2017, 07:03 AM  
Why am I getting TTL exposure with a AF200T and the K-70 DSLR?
Posted By fwcetus
Replies: 12
Views: 895
Yes, the same with the AF540FGZ.

And the AF200T and the AF280T do a (perhaps surprisingly) very good job at good ol' "auto (thyrister) flash" on older bodies and even on the newer DSLR's.

[The AF080C ring flash that I mentioned, though, lacks the external thyristor sensor (which might be difficult to implement on a macro flash anyway), so it can't do "auto flash", but it does work nicely for TTL on film bodies and those first three Pentax DSLR's, and it also works well fror manual flash.]

Pentax, sometimes purposefully and sometimes accidentally (as in this original topic of this thread, I would say), usually seems to offer a lot of forward and backward compatibility, and it's always nice to have options. :)
Forum: Sold Items 12-30-2017, 07:26 AM  
For Sale - Sold: My Best Tokina AT-X 60-120 / 2.8 Full Frame Lens in Box with Dedicated SH-553 Hood
Posted By fwcetus
Replies: 9
Views: 1,860
Sold . . . :)
Forum: Flashes, Lighting, and Studio 12-29-2017, 09:14 PM  
Why am I getting TTL exposure with a AF200T and the K-70 DSLR?
Posted By fwcetus
Replies: 12
Views: 895
Actually, to be most correct, the *ist D, the *ist DS, and the *ist DS2 can all use TTL, so that the DS2 is the last model to do so. [Admittedly, of course, a DS2 is basically a DS with a larger LED screen -- are there any other differences? -- so I am guilty of quibbling, I guess.]

I have two DS2 bodies that do TTL flash with AF280T and AF080C flash units just fine. :)
Forum: Pentax K-01 12-23-2017, 10:30 AM  
is the pentax k01 still worth buying in 2017 ?
Posted By fwcetus
Replies: 42
Views: 5,070
Nice cat pics, luftfluss. :)

When I bought my first K-01, I quickly decided I wanted another, converted to IR. Then, I decided since the K-01 is now a "legacy" body, to obtain two more low-mileage K-01's (one of which I also had converted to IR), so that I had two K-01 backup bodies (one "normal" and one IR). However, my two "user" K-01's seem so reliable that I'm realizing that I probably didn't really need backups, in which case, if I ever did have one "bite the dust", I' d just pick up a replacement. (?)

It sure would be nice if Pentax/Ricoh updated the firmware for KAF4 lenses, though...
Forum: Sold Items 12-14-2017, 11:46 AM  
For Sale - Sold: My Best P/KA-mt Tokina AT-X 100-300 / 4 SD Lens with Dedicated Hood and Case in Box
Posted By fwcetus
Replies: 6
Views: 1,105
Sale pending . . .

:)

:hmm:

:confused:

:(

I'm gonna miss this lens . . .
Forum: Pentax K-01 12-13-2017, 08:04 AM  
is the pentax k01 still worth buying in 2017 ?
Posted By fwcetus
Replies: 42
Views: 5,070
I just took a look at the ClearViewer site, and am interested. Just curious, zippy -- do you have the tripod-socket-mount version or the hotshoe-mount version?
Forum: Pentax SLR Lens Discussion 12-08-2017, 12:34 PM  
K-1 and extension tubes with P-TTL flash. Are deglassed converters the only option?
Posted By fwcetus
Replies: 17
Views: 906
Same here (almost) -- I was able to obtain a pristine *ist DS2 (basically the same as a DS but with a larger LED display for my older-than-dirt eyes), that I use with an AF080C ring flash (or sometimes with an AF280T flash) along with an A 50/2.8 Macro, as my "dedicated eBay/Marketplace pics rig". Good ol' TTL works great with an *ist D, an *ist DS, or an *ist DS2.

:)
Forum: Pentax K-01 12-08-2017, 12:20 PM  
is the pentax k01 still worth buying in 2017 ?
Posted By fwcetus
Replies: 42
Views: 5,070
I have some of my earlier photos taken with one of my IR-converted K-01 bodies (I have two of these -- the other is a backup body) with the DA15/4 Ltd mounted on it at The DA 15/4 Limited Does Infrared - PentaxForums.com
Forum: Flashes, Lighting, and Studio 12-07-2017, 07:42 AM  
TTL studio flashes now available for Pentax and Fujifilm
Posted By fwcetus
Replies: 10
Views: 1,047
Is this TTL or is it P-TTL ?
Forum: Sold Items 12-07-2017, 07:32 AM  
For Sale - Sold: My Best P/KA-mt Tokina AT-X 100-300 / 4 SD Lens with Dedicated Hood and Case in Box
Posted By fwcetus
Replies: 6
Views: 1,105
Bump...
Forum: Sold Items 12-07-2017, 07:32 AM  
For Sale - Sold: My Best Tokina AT-X 60-120 / 2.8 Full Frame Lens in Box with Dedicated SH-553 Hood
Posted By fwcetus
Replies: 9
Views: 1,860
Bump...
Forum: Sold Items 12-03-2017, 08:08 AM  
For Sale - Sold: Genuine Pentax 080C Ring Light and Macro Flash
Posted By fwcetus
Replies: 10
Views: 1,498
The AF080C is a ~great~ li'l macro ring flash.

It works with good ol' reliable TTL flash mode with the *ist D, DS, and DS2 (and, of course, with the LX, the Super A, etc.). Unfortunately it doesn't do P-TTL, but is easy enuf to use as a manual flash on all of the newer DSLR bodies - and the optional manual 1/4-power setting (Guide Number 4) i(which a lot of flashes lack) s a big help for not overwhelming macro subjects.

I use mine often with a DS2 and a A 50/2.8 Macro as my "dedicated 'eBay pic' cam" - :lol:
Forum: Pentax SLR Lens Discussion 12-02-2017, 05:34 PM  
Best macro available for the system? :)
Posted By fwcetus
Replies: 44
Views: 1,639
The Tokina AT-X 90/2.5 "Bokina" (especially in PK/A-mount trim, just for convenience). :)
Forum: Pentax DSLR Discussion 11-29-2017, 07:49 AM  
I made a big mistake and need help - Ricoh pin
Posted By fwcetus
Replies: 5
Views: 1,175
Great news !!! :)
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