Originally posted by RiceHigh What argument?
The straight fact is NO ONE IS SURE *which* DA lens is designed for Full Frame and which one is not. There is nothing that can be distinguished in the *same* lineup nor Pentax has ever told us there are DA lenses that are designed for FF.
But I *am* sure. The DA*200 and the DA*300 are both FF compatible because simple physics state that there is *no* reason to make them smaller for APS C.
Quote: Whilst you can continue to try and guess which DA lens is FF and which ones are not, it is NOT official unless Pentax makes an announcement to clarify that - what to argue?
That's right, there is *no* argument and *no* guess, the DA*200 and the DA*300 *are* FF compatible. Therefore, Pentax do *not* need to redesign these two lenses for FF and Pentax *already* have FA31, FA35, FA43, FA50, FA77, DFA50 and DFA77, plus the two DA* telephotos.
Quote: When someone is brave enough to use purchased stuff in an unofficial way, actually they are just doing all at their own risk.
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This is a silly argument. *Once* Pentax make FF camera *they* will announce which lenses are FF compatible. Simple. Why the fuss?
Quote: I can use my DA 16-45 on my MZ cameras from f=22mm and longer, but is this *official*? Nor, I could accept the poor image quality at the image corners for such *non-intended* usage?
The DA16-45 was *not* desgined for 35mm film, so why should there be *any* official announcement to whether it suits FF as Pentax do *not* have any FF DSLR's? This is a ridiculous statement by you. *Once* Pentax manufacture a FF DSLR, *then* they can announce which are FF suitable. You are putting the cart before the horse in order to to make some flawed point.
Quote: Even if some people are having strong faith in their investment and must believe that some DA lenses are designed for FF when now the FF era has come, I bet most of the other Pentax users and potential buyers do have hesitation on that and will not be so brave and as brave.
Why on earth would *anyone* who has an APS C DSLR decide *not* to purchase an APS C lens if they are perfectly happy with the results from their APS C DSLR because they fear a future FF camera? If someone needs a lens for a specific purpose and they are perfectly happy with the results from their Pentax camera, then why would they not purchase a lens to suit? Why on earth would they keep putting off a purchase of a lens because they are thinking that a FF camera maybe a year or two away, especially considering that they are perfectly happy with the results from APS C and more than likely *won't* go FF? The argument that people will put off buying a lens simply because they *think* they may upgrade to FF is quite surprising. Did they put off buying the APS C camera for fear of FF making it obsolete?
APS C will *not* be abandoned by C, N, S or Pentax and *any* lens purchased for APS C can therefore be sold if need be. If I purchase an APS C lens and then decide to go FF, I can assure you I will get a minimum of half it's value but much more likely a lot more by selling it on ebay and this is a small price to pay for a few years valuable service of a lens that is *much* needed at the time. I will have taken literally thousands of photos with it and that is like paying a small rent to have for the pleasure of using it. If I need a wide angle lens now, then I need it now and as it suits APS C, than that has to be the lens of choice.
You also seem to think that by some magic that *all* people will "upgrade" to FF and therefore abandon APS C, when nothing could be further from the truth. As can be seen by Canon and Nikon etc, their APS C sales outsell their FF sales by at least 20:1, so there will be still a *huge* market for APS C lenses and APS C cameras, even if this ratio goes to 10:1, 5:1 or even 1:1.
Quote: So, afterall, why only Pentax should face this difficulty and marketing dilemma? Just because they haven't made this important thing clear enough! Could anyone ever see a DX Nikkor or an EF-S Canon lens starting from mid-tele to tele? Nope, C and N (or even Sony) are wise enough to make thing clear cut enough to differentiate this importance difference. Well, Pentax has super tele DA* lenses, wow!?
You conveniently forget the FA31, FA35, FA43, FA50, FA77, DFA50 and DFA100 and any of these lense would blow the lenses from C and N out of the water both on film and on FF digital.
Also, Nikon for *years* denied that they would ever go to FF.
The trouble is, RH, you *want* so desperately to find fault with Pentax that you conveniently miss the facts outlined above. You have *no* idea whether Pentax is *already* working on FF lenses alongside FF camera development and may already have some ready but have not announced them because they do not want pre press about a FF camera, especially if the camera is not ready for release any time soon.