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01-23-2015, 02:15 PM   #811
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QuoteOriginally posted by filoxophy Quote
Are we looking at the same list? All FA Ltds and D FAs are on there...
I was looking at the list Adam posted in the forum... here: https://www.pentaxforums.com/forums/94-pentax-price-watch/286630-hot-deals-pe...enses-b-h.html

But I see that he posted a different list (more complete) as an article at the main page of the website. So there goes my theory

01-23-2015, 02:17 PM   #812
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QuoteOriginally posted by ChristianRock Quote
I was looking at the list Adam posted in the forum... here: https://www.pentaxforums.com/forums/94-pentax-price-watch/286630-hot-deals-pe...enses-b-h.html

But I see that he posted a different list (more complete) as an article at the main page of the website. So there goes my theory
I mean hey, I liked the theory! What will be, will be...
01-23-2015, 03:08 PM   #813
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QuoteOriginally posted by filoxophy Quote
Are we looking at the same list? All FA Ltds and D FAs are on there...
No, I posted a full list of the sale prices.
01-23-2015, 06:19 PM   #814
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QuoteOriginally posted by ChristianRock Quote
So, Adam just posted the new lens sale from B&H.

Only DA and DFA lenses. No FA (Limiteds, 50 1.4), and no DA lenses that are based on older full-frame designs and cover full frame (like DA 35 2.4, 50 1.8 and DFA 100 Macro).

Could it be that the FF is really knocking at the door?
Keep the conspiracies coming! :-D

01-26-2015, 01:51 AM   #815
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QuoteOriginally posted by ChristianRock Quote
So, Adam just posted the new lens sale from B&H.

Only DA and DFA lenses. No FA (Limiteds, 50 1.4), and no DA lenses that are based on older full-frame designs and cover full frame (like DA 35 2.4, 50 1.8 and DFA 100 Macro).

Could it be that the FF is really knocking at the door?
That wouldn't make much sense. First selling customers as many APS-C lenses as possible and then launching the FF camera would generate a lot of bad vibes. The other way round though, selling a lot of FF glass prior to the FF camera launch would be better. It would get people to buy the FF camera as well quicker.
01-26-2015, 02:38 AM   #816
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QuoteOriginally posted by Clavius Quote
That wouldn't make much sense. First selling customers as many APS-C lenses as possible and then launching the FF camera would generate a lot of bad vibes. The other way round though, selling a lot of FF glass prior to the FF camera launch would be better. It would get people to buy the FF camera as well quicker.

You assume the customer base is uniform and everyone wants a FF system. That's not a reasonable assumption.
01-26-2015, 04:33 AM   #817
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QuoteOriginally posted by cxdoo Quote
You assume the customer base is uniform and everyone wants a FF system. That's not a reasonable assumption.
I'm not even sure that most people who buy cameras know or care what size sensor is in it. That said, it may not be a reasonable assumption for Pentax DSLR owners, who may be more knowledgeable on the matter. I base this purely on the hypothesis that to buy a Pentax DSLR one must either be an enthusiast, or have done a bit of research into value for money and features.
01-26-2015, 04:44 AM   #818
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QuoteOriginally posted by Cynog Ap Brychan Quote
I'm not even sure that most people who buy cameras know or care what size sensor is in it. That said, it may not be a reasonable assumption for Pentax DSLR owners, who may be more knowledgeable on the matter. I base this purely on the hypothesis that to buy a Pentax DSLR one must either be an enthusiast, or have done a bit of research into value for money and features.

Not only that; knowing or not knowing about these technicalities one might prefer the size/weight/price of APS-C system. So to treat APS-C as a swindle or surrogate for the "real thing" is kind of myopic.

01-26-2015, 05:12 AM   #819
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QuoteOriginally posted by cxdoo Quote
You assume the customer base is uniform and everyone wants a FF system. That's not a reasonable assumption.
Nope, not assuming that. I am assuming though that very little people would be ammused when buying lenses today and only discover later, when they want to buy that mythical FF camera, that those lenses won't work on it. Those people may not even know about sensor sizes, but they won't like when they learn the hard way.
01-26-2015, 05:23 AM   #820
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QuoteOriginally posted by Clavius Quote
. I am assuming though that very little people would be ammused when buying lenses today and only discover later, when they want to buy that mythical FF camera, that those lenses won't work on it. Those people may not even know about sensor sizes, but they won't like when they learn the hard way.


I don't really believe there is such a thing as a person who invested (significantly) into lenses and is unaware of format details. Yes there are many people who don't know this, but they are typically on a kit lens (or two).


Also I don't see why the lenses wouldn't work. Either with vignetting or cropped.
01-26-2015, 05:57 AM   #821
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QuoteOriginally posted by cxdoo Quote
Also I don't see why the lenses wouldn't work. Either with vignetting or cropped.
Many DA lenses, especially primes, will work fine as is. If they don't work without any troublesome issues like vignetting, a Pentax FF will no doubt have the option to mount crop lenses and just have them work in reduced MP crop mode if desired. Just like Nikon and Sony, for example, handle the same issues with their mounts. It's not a drama.
01-26-2015, 06:10 AM   #822
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I don't know much about technical issues but what would happen if I mounted my 18-135 on a FF? Would it be something like a 20 - 140? I've seen a friend's Tamron 300 mm zoom which he uses on a d3200 being mounted on another friend's d600 with no issues. I just don't know the crop equivant but if it's possible with Nikon won't it be possible with Pentax?
01-26-2015, 06:30 AM   #823
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QuoteOriginally posted by rawr Quote
Many DA lenses, especially primes, will work fine as is. If they don't work without any troublesome issues like vignetting, a Pentax FF will no doubt have the option to mount crop lenses and just have them work in reduced MP crop mode if desired. Just like Nikon and Sony, for example, handle the same issues with their mounts. It's not a drama.
On a side note, I'm not sure why more companies aren't approaching video with this concept in mind.
If you think about it Full HD is a 2MP image, so the 20MP sensor is being scaled down dramatically to create the video image with the same field of view.

Technically there is no reason why the final 2MP image couldn't be made up of just a 2MP area in the middle of the sensor. This would give a massive 'zoom' whilst still providing 1:1 pixel mapping, without needing any nasty 'digital zoom' image stretching. You could call it digital crop zooming or something like that, and you could offer a range of steps.

I know this is offered for stills and maybe video on FF sensors to utilise the APS-C area of the sensor. It gives prime lenses some zoom ability, so is like having two lenses instead of one. This works exceptionally well for video work as the final image is so small 2MP compared to the stills sensor size of say 16-24MP.

Just an idea, if anyone at Pentax is listening...
01-26-2015, 06:50 AM   #824
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QuoteOriginally posted by totsmuyco Quote
what would happen if I mounted my 18-135 on a FF?...if it's possible with Nikon won't it be possible with Pentax?
The 18-135 lens would basically work OK, but probably vignette a lot. The way I guess it would work is that your 24 MP (or 36MP) Pentax FF would offer you the option to mount the lens normally and get AF and everything, but it would only capture at a 'crop' resolution of perhaps 10MP (like the 24MP D610 does when used in DX crop mode). That's how the Nikon equivalent of the Pentax 18-135 (the Nikon 18-105 kit lens) works when mounted on FF.

The cheap and cheerful Tamron AF 70-300mm f/4-5.6 macro zoom for Nikon and Pentax is, by the way, a FF design that is fully compatible with Nikon and Pentax FF bodies. No problems there.

Pentax has no doubt studied very carefully what Nikon has been doing when crop Nikon lenses mount on Nikon FF's. I suspect all the 'crop' mode features found in Nikon will be reflected in Pentax's implementation of FF, and more.

Last edited by rawr; 01-26-2015 at 06:58 AM.
01-26-2015, 06:55 AM   #825
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QuoteOriginally posted by totsmuyco Quote
I don't know much about technical issues but what would happen if I mounted my 18-135 on a FF? Would it be something like a 20 - 140? I've seen a friend's Tamron 300 mm zoom which he uses on a d3200 being mounted on another friend's d600 with no issues. I just don't know the crop equivant but if it's possible with Nikon won't it be possible with Pentax?
Ummm... a 18-135mm on FF is a... 18-135mm .
You don't do equivalency on FF bodies... you do them on crop bodies.

What it will happen, most probably, is that from 35mm and below, it will start vignette like crazy...
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