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12-20-2011, 08:17 AM   #271
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QuoteOriginally posted by Asahiflex Quote
The electronics in the FA* lenses is old and outdated.
New circuitry shouldn't be hard to come up with. They know the specs, and it's not rocket science.

QuoteOriginally posted by Asahiflex Quote
The glass recipes from that era do not exist anymore. They will not use leaded glass in future products (there is lead containing glass in the FA* series with a different refractive index). It just won't happen. Sorry!
How do they produce and sell the FA Ltds? Have they removed the lead from them, and if so, is it a different optical formula on the later lenses?

12-20-2011, 08:39 AM   #272
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QuoteOriginally posted by Asahiflex Quote
Of course they won't start from scratch, but referring to the FA* series is not very helpful if the end result is a completely new lens with a different optical scheme, different glass and different coating. Such a new lens will have no relation to the FA* series whatsoever, apart from probably the focal length and zoom range. The rendering and color transmission will be very different. If one wants the FA* series then one should buy them second hand
They have already done this at least twice: the DA* 200/2.8 is the same optical construction as the FA* 200/2.8. The D-FA 50/2.8 Macro is the FA 50/2.8 Macro if I'm not mistaken. Replacing one element with another one with the same properties without lead is not rocket science (BTW wasn't it lead in the electronics that was the culprit?).
12-20-2011, 08:56 AM   #273
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QuoteOriginally posted by Pål Jensen Quote
(BTW wasn't it lead in the electronics that was the culprit?).
I think so. E.g., Pentax told me so. It is lead in the soldiering. Optical glass is exempt from the new regulations.
12-20-2011, 09:02 AM   #274
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QuoteOriginally posted by Pål Jensen Quote
They have already done this at least twice: the DA* 200/2.8 is the same optical construction as the FA* 200/2.8. The D-FA 50/2.8 Macro is the FA 50/2.8 Macro if I'm not mistaken. Replacing one element with another one with the same properties without lead is not rocket science (BTW wasn't it lead in the electronics that was the culprit?).
Add DFA 100 2.8 macro to that list. it was an updated fa 100 2.8 (updated twice in fact with the WR variant)

12-20-2011, 09:15 AM   #275
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QuoteOriginally posted by eddie1960 Quote
Add DFA 100 2.8 macro to that list. it was an updated fa 100 2.8 (updated twice in fact with the WR variant)
Da 35 f/2.4 use the same formula as the FA35 f/2 as well.
12-20-2011, 11:15 AM   #276
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QuoteOriginally posted by falconeye Quote
I think so. E.g., Pentax told me so. It is lead in the soldiering. Optical glass is exempt from the new regulations.
Well, that was correct for a short time, but the future is different: RoHS recast: implications for optical materials
12-20-2011, 12:06 PM   #277
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QuoteOriginally posted by Asahiflex Quote
Well, that was correct for a short time, but the future is different: RoHS recast: implications for optical materials
Sigh. Brought to you by the same EU that has brought an avalanche of mercury into the ecosystem by outlawing old-fashioned lightbulbs
12-20-2011, 02:09 PM   #278
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QuoteOriginally posted by Clinton Quote
But they do have so much invested in lenses. They have already done the R&D on the FA* and FA Limited lenses, lenses which are so good that the glass is still out-resolving our current sensors. Just because they aren't producing them doesn't mean much. AFAIK, they could start producing them again at any time, to pair up with their FF camera.
I bet you that next DSLR will be APS-C(lol), exactly because they have so much vested in their DA lenses. By keeping APS-C, Pentax may think that they can stretch the milking of DA and DA* line up. They might as well do that. I also think that they will throw a bone or two by adding another interesting focal length primes when nobody is expecting. They will prop up without rumors.

For FF mirrorless, the body will be relatively cheap in comparison to DSLR counterpart for obvious reasons. But if Pentax believes that the future of the market direction is mirrorless, then it would make sense to spend substantial R&D (they don't have to sweat it any more) in entirely new FF lens line up. I see reasonably priced "kit" FF primes and zooms that go with the body, along with the expansion of D FA lenses. There will be D FA*'s, I am sure. I think they got what they could out of FA* and FA limiteds, and they have exceeded their wildest expectations. While resolution may not be as much an issue, there maybe other issues that can warrant a design update or two to make improvements (again not in resolution). Also, having attached my FA limiteds to my M8, I can tell you that Pentax will probably like to make their lenses smaller. That aspect alone is probably a reason enough to come up with a newly designed line up.

12-20-2011, 03:01 PM   #279
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It would be suicide to Pentax to go with the old standards when they have a real shot at 'redefining' the up-market digital camera. To produce FA* lenses again would be insane in that context. It's not about that which already exists but what is possible. Unless Pentax embrace this new era they may as well just pack up and quit now.

The following are all possibilities I suppose (some more than others) and any duplication of hardware isn't cost effective so I can't see leaf shutters being included in lenses anytime soon. The idea is to reduce costs and make a profit.
Composite Digital Lenses
No (mechanical) shutter
EVF
No mirror
Modular Sensors, veiwfinders & body kits
Square format sensor with electronic formatting of aspect ratio

EDIT: Re' the Composite Digital Lenses remark: Ricoh has already started the ball rolling in this direction with their analogue lens/Sensor combos. This technology is more likely to appear first in P&S or phones at first though and is probably 10 years away.

Last edited by bossa; 12-20-2011 at 03:07 PM.
12-20-2011, 06:41 PM   #280
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Mostly vaporware, IMO.

Electronic aperture? Same answer as SLT:"No thanks". Air gap between lens and sensor works best.
12-20-2011, 06:58 PM   #281
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Everyone seems so gung-ho for a new lens line. Woot! We can shave a whopping 5mm off the lens mount by throwing away a formula that has worked for 30 years, and destroy all backwards compatibility. Thrilling really.

Again, I say why bother? use the air space for other things, but while you're at it, keep in mind that the Pentax K mount film bodies are crazy thin in comparison to the K-5 because there is lots of stuff behind the sensor.

If you're trying to save space, why not make the body exactly the size of the sensor. Just a hockey puck that attaches to the lens. <saracam>Everyone will love that.</saracam>

Also throw away the pesky mechanical focus, because everyone whom buys Pentax loves SDM.

Sure, make an adapter... maybe one that works as well as the prototypes of the K adapter for the Q. You know, the one with all manual controls. </rant>
12-20-2011, 07:09 PM   #282
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QuoteOriginally posted by Clinton Quote
keep in mind that the Pentax K mount film bodies are crazy thin in comparison to the K-5 because there is lots of stuff behind the sensor.
Yup




Almost M43 thin....


12-20-2011, 07:14 PM   #283
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Dropping K-mount means a net loss of patronage

QuoteOriginally posted by Clinton Quote
Everyone seems so gung-ho for a new lens line. Woot! We can shave a whopping 5mm off the lens mount by throwing away a formula that has worked for 30 years, and destroy all backwards compatibility. Thrilling really.
Not to mention; why even stick with Pentax if the new cameras require a whole new mount, new lenses? If you have to build a new lens collection from the ground up anyway, maybe take the opportunity to switch to Panasonic or Fuji, or wait about 6 months to see what Sony delivers or a year to see what CaNikon delivers in aps-c or FF format mirrorless?



.
12-20-2011, 07:27 PM   #284
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What a bunch of Luddites. Why go with pneumatic tyres when you can have a wagon wheel, right?
12-20-2011, 07:41 PM   #285
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QuoteOriginally posted by bossa Quote
What a bunch of Luddites. Why go with pneumatic tyres when you can have a wagon wheel, right?
An innovator asks, "What can I do with this new thing?"
A Luddite asks, "What can't I do with this new thing?"
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