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04-22-2017, 09:27 AM   #256
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QuoteOriginally posted by Bophoto Quote
And then comes nothing?
Just a few primes and run production for the K-1 for another 3 years. Who knows how the camera market looks like then.

04-22-2017, 09:38 AM - 6 Likes   #257
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QuoteOriginally posted by Adam Quote
I'm not sure how quickly we can expect the other lenses, but the 50mm is definitely planned for this year.
I'll probably be lambasted for saying this; but I think that the 50 1.4, 85 1.4 fill out the roadmap for everything but a super telephoto like the 250-600. I'm not sure they need a crap ton of other lens models. If I was Pentax, I would be iterative from there, adding weather sealing and modern coatings to the limited lenses.

Maybe roadmap a few other gems like the 135/1.8 or the 200/4 macro; but the sales in that arena is going to be slim.
04-24-2017, 09:33 AM   #258
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QuoteOriginally posted by Clinton Quote
I'll probably be lambasted for saying this; but I think that the 50 1.4, 85 1.4 fill out the roadmap for everything but a super telephoto like the 250-600..
I'll add to those a 35mm f1.4 ( size like the 31mm Ltd so it will have an advantage over the Sigma 35mm ), and a compact 20mm f2.8. 4 primes 4 zooms.. and the rest can be fill with 3rd Party glass and FA glass.
04-24-2017, 10:35 AM   #259
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Third party? Which one?
Outsourced lens? Maybe, yeah...

04-26-2017, 08:44 AM   #260
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Added macro ability for the DA 70 2.4 would be nice. Other is pretty much covered by current roadmap...
04-26-2017, 11:25 PM   #261
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I see that Pentax has a full frame, ultra wide angle prime forecast sometime in the next while. I haven't read all 18 pages of this thread, but wonder if there is anymore information on this lens...how wide, premium lens, F stop, etc., introduction dates ?

I do like my 28-105 for my K-1, but I would like something wider and I do like prime lenses.
04-27-2017, 06:53 AM   #262
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lesmore49, we have no idea what they're planning, save for a couple very tight lipped folks that have no reason to share info at this time. I suggested a couple lenses to kenspo and he seemed amused and told me to keep waiting.
04-27-2017, 07:10 AM - 1 Like   #263
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60mm macro for the FF is the 4th prime. Weather sealed. It is a real lens.
And you will not get this real info from anyone else, because those other guys know nothing real.
Enjoy.

04-27-2017, 10:58 AM   #264
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QuoteOriginally posted by Uluru Quote
60mm macro for the FF is the 4th prime. Weather sealed. It is a real lens.
MP-E competitor or "just" 1:1? Salivating at the idea of an MP-E competitor over here...
04-27-2017, 11:27 AM   #265
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Quick web searching shows very little on such a lens. There's a single website that shows a translation of a Ricoh patent application for a 60mm macro. It's a four year old article (for lack of a better term) and was somewhat confusing as it shows multiple lens configurations. I personally find it odd that engineering firepower would be focused on that sort of product given that the D-FA 50 and 100 Macros exist and seem to be quite good lenses. But maybe it's the right path.

Will wait and see.
04-27-2017, 11:45 AM   #266
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QuoteOriginally posted by CarlJF Quote
Maybe I'm missing something, but what exactly is so wrong with the Pentax 560mm that it could not be considered a viable alternative to a 600/f4 ? Okay, I understand it's one stop slower, but it's not such a big drawback on a camera such as the K-1. Raise the ISO one stop, and you're still as good if not better than the f4 on a Canon body. As for FL, the 40mm difference doesn't make much difference in practice. So, what more can be achieved with a 600/f4 that cannot be done with the 560mm 5.6 to the point of making it unusable for that purpose, making a 600/f4 the only way to go ? I'm asking, because I really can't see... Why wait for an hypothetical 600/f4 when a 560/5.6 is available right now ? If the reach of a 600mm is really needed, why not just get the 560 ?
The DA560 is a good idea because it corresponds very well to what's needed for static wildlife subjects. Lots of people say that the DA560 is too long, well, it not that long it's like any long lens like the 400 f2.8, 500 f4 and 600 f4, it's not the kind of lens for walking about, it's the kind of lens you mount on a gimbal anyway, and f5.6 3kg is about perfect for static subjects. But, I consider the DA560 as a failure because its price is too high. Since it is a telescope design with less glass elements and more flare, the lens should not be price higher than a telescope of the same quality, e.g $2000, but Ricoh sells it $4000. For $4K you get a Sigma 500 f4 and you can add a TC on it. Basically, people who want the long prime on their Pentax camera take the Sigma 500 f4.5, the DA560 not being competitive on price.

---------- Post added 27-04-17 at 20:48 ----------

QuoteOriginally posted by redpit Quote
So why I haven't bought the DA 560 and why I would buy, for example, the new Sigma 500/4 the same day that would hit the market in K mount: - It's a DA lens that vignettes a lot until F8 - It's too long to carry around and needs special-seperate bag - It's slower than other primes at its price tag (though this is not a deal breaker for me) - It can only handle the 1.4X TC and that decreases its versatility - Its minimal focus distance is too long at 5.6meters (bad for birding) - Its DC motor is quite fast but not HSM fast (again not a deal breaker) - It's not a * star len and you only buy once that kind of lenses. If it were a star lens CA and FR performance would be greater i believe.
Too expensive versus what you can get from Sigma.
04-28-2017, 09:08 AM   #267
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QuoteOriginally posted by biz-engineer Quote
The DA560 is a good idea because it corresponds very well to what's needed for static wildlife subjects. Lots of people say that the DA560 is too long, well, it not that long it's like any long lens like the 400 f2.8, 500 f4 and 600 f4, it's not the kind of lens for walking about, it's the kind of lens you mount on a gimbal anyway, and f5.6 3kg is about perfect for static subjects. But, I consider the DA560 as a failure because its price is too high. Since it is a telescope design with less glass elements and more flare, the lens should not be price higher than a telescope of the same quality, e.g $2000, but Ricoh sells it $4000. For $4K you get a Sigma 500 f4 and you can add a TC on it. Basically, people who want the long prime on their Pentax camera take the Sigma 500 f4.5, the DA560 not being competitive on price.

---------- Post added 27-04-17 at 20:48 ----------
Too expensive versus what you can get from Sigma.
I can't argue with your logic. I have been eyeballing the DA560 for a long time, price is at least $1300-1500 too high. I use the DFA 150-450 or FA*300 F2.8 and a Tamron 2xTC (of course, on a K-3). Many close up pixel peeps here, not a big IQ degrade. The Siggy 500 F4.5 looks pretty good. I do not have any experience with it. Their K-1 Upgrade process was excellent on a Siggy 150-500 Gen2.
05-02-2017, 10:47 AM   #268
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If you take a trip to UK, SRS are selling DA560 for 3000£.
Can you buy a new Sigma 500/4,5 now?
The new Sigma 500/4 cost 5000£.
05-02-2017, 11:03 AM   #269
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QuoteOriginally posted by Bophoto Quote
If you take a trip to UK, SRS are selling DA560
The is also one for sale in the market place here (https://www.pentaxforums.com/forums/24-photographic-equipment-sale/338581-sale-da-560-mm.html), but it seems that no one jumped on this opportunity yet.

Last edited by biz-engineer; 05-02-2017 at 11:23 AM.
05-09-2017, 12:06 PM   #270
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QuoteOriginally posted by angerdan Quote
First AF lenses from Pentax came 1987 (F* 300, F 100 2.8 Macro).
Computer technology already was so powerful at this time, even cinema movies has complete computer animated scenes in it. So i believe simple optical calculations could have been technical possible at this time.
Tron - Wikipedia
QuoteOriginally posted by wkraus Quote
Computer-aided optical design was already available in the consumer market in the 1970s. E.g., Vivitar's first Series 1 lenses were advertised as computer designed.
There is a big difference between the computer tools available thirty years ago and what is available today.
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