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03-21-2016, 05:02 PM   #31
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QuoteOriginally posted by oneill Quote
I waited so long for a 400mm/F4 that I gave up and bought an SMC Pentax-M* 67 400mm F4.0 and a 67 to K adaptor.
How is that combination to handle in the "field"? Do you find the DA 560 keeps you too far away from the bears that you want a shorter lens so you can get up close and personal?

03-21-2016, 05:31 PM   #32
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QuoteOriginally posted by gorme Quote
Waiting for the post services to bring him 2 K1
Just find out the reason for 2 K1s is that Ricoh really wants he use a K1 to take pictures of K1...
03-21-2016, 09:27 PM   #33
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Certainly a 400mm f4 that could be used with a 1.14xTC and still auto focus would hit a market spot. I have an older generation A-400 f/2.8 and aside from being astonishingly heavy
it is astonishingly good, and when matched up with either the classic 1.4x-L or 2x -L you have a broad range of effective focal lengths. It seems like with modern technology they ought
to be able to make a lens as good as they did 20 or 30 years ago.
03-21-2016, 10:51 PM   #34
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QuoteOriginally posted by rlatjsrud Quote
I really don't understand why Pentax never add that kind of telephoto lens to the road map? Also, features are really lame compare to 150-450 and 70-200 lenses. DA 560mm have poor design and lack of features.

Btw why this kind of lens have a silver ring? Star lens have a golden or yellow ring while other normal lenses don't. New Pentax 645 lenses have silver rings tho.
How exactly?

03-22-2016, 01:22 AM   #35
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I agree with those who claim that the lenses he holds in his hands are prototypes of the 560/5.6. What I find more interesting are the lenses on the photo in the background. Have any of you seen such designs from Pentax?
03-22-2016, 02:24 AM   #36
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QuoteOriginally posted by rlatjsrud Quote
I really don't understand why Pentax never add that kind of telephoto lens to the road map? Also, features are really lame compare to 150-450 and 70-200 lenses. DA 560mm have poor design and lack of features.

Btw why this kind of lens have a silver ring? Star lens have a golden or yellow ring while other normal lenses don't. New Pentax 645 lenses have silver rings tho.

DA10-17 fish eye lens has a silver ring too. Maybe they both have a silver ring because they are the opposite extremes of the lens line up.
03-22-2016, 03:40 AM   #37
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QuoteOriginally posted by monochrome Quote
It would also hardly be surprising if such lenses under development don't show up on any public roadmap. I suspect there is the roadmap we see - and then there is the development roadmap; lenses in various stages of development but not yet financially cleared to manufacture.

I suspect many of the development raodmap lenses will make it to our roadmap if K-1 is a success.
I think it is best to see the roadmap as a marketing tool.

It's a way of Pentax trying to encourage people to buy into the K mount system by saying "here are some upcoming lenses". However, it's a balancing act as they don't want to over promise - as you say there are probably many such lenses actually in development. But many will also never see the light of day.
03-22-2016, 04:13 AM - 1 Like   #38
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I'd love to see a D-FA* 400 f/4 !

03-22-2016, 05:34 AM   #39
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I think it is the old SMC Pentax-F* 250-600mm F5.6 ED [IF] Reviews - F Zoom Lenses - Pentax Lens Reviews & Lens Database
03-22-2016, 06:17 AM   #40
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Based on complete supposition, and measuring of the hood, no strap lugs, and the knurling on the hood ring, I am fantasizing on the DFA 400 F4. My FA*300 F2.8 doesn't have measurements that are even close in LOA, Width, and Hood Length vs width. My working back on the DA HD 560 measurements, I easily blunder forth at 400 F4.
03-22-2016, 08:31 PM - 1 Like   #41
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Those are prototypes of 560mm lens. No new lenses.
03-22-2016, 10:22 PM   #42
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The small one has got a green ring, and what look as being a small DFA* plate, so no.
03-23-2016, 05:56 AM   #43
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QuoteOriginally posted by Zygonyx Quote
The small one has got a green ring, and what look as being a small DFA* plate, so no.
The collapsed prototype of the 560mm has a green ring too. Look similar.
03-23-2016, 03:44 PM   #44
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With the latest lens designs from Ricoh (DFA15-30,DFA24-70,DFA28-105) I'd be very surprised if Ricoh would release a new 300 f2.8 or 400 f4. IMHO, they just think that the DFA150-450 covers up to 450 and the DFA560 cover the 600mm range, that's it, which is about right when considering that most amateur photogs won't spend $4000 into a lens. It's kinda self fulfilling prophecy as the category of people who'd buy a 400 f4 or 600 f5.6 most likely get those from Canon or Nikon already. If you consider a $4000 lens the camera mount compatibility isn't an issue, the cost of the camera body being cheap in comparison.
03-23-2016, 10:10 PM   #45
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Any special fast lenses could be real only later, in 2019-2020, when all roadmap lenses will be launched and Pentax FF system will be stable and solid.
DA*560/5.6, DA*200/2.8 and 300/4 are FF lenses, DFA150-450/4.5-5.6 covers very popular focal range.

I don't see any space for DFA200/2, 300/2.8, 400/4, 500/4 or 4.5 lenses now. It would be very expensive and rather special lenses.

Something longer 560 mm - I hope it will be 1.4x and 2x DFA TC.

Canon 600/4 is 11500 USD
Nikkor 600/4 is from 8600 till 12300 USD (different versions)
Canon 800/5.6 is 13000USD
Nikkor 800/5.6 is 16300 USD
Sigma 800/5.6 is made only by special order 6600 USD


Pentax 560/5.6 is 5000 USD

Last edited by ogl; 03-23-2016 at 10:24 PM.
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