[gatorguy]

With the beta testing of of the new FF Pentax in progress I thought it it a good time to be looking around at possible lenses if I decide to upgrade from my K50. Problem: I have no idea what to look for or how to know when I see it.

I've been told by an acquaintance that both my Pentax F 35-70 3.5-4.5 and Sigma DL Macro Super 70-300 are very good full-frame lenses and to hold on tight to them. But what makes them full-frame? What other lenses should I be keeping an eye open for? I imagine once the new body is released there will be a scramble for some of them. That's assuming of course that it's all it's rumored to be.

[bassek]

With the beta testing of of the new FF Pentax in progress I thought it it a good time to be looking around at possible lenses if I decide to upgrade from my K50. Problem: I have no idea what to look for or how to know when I see it.

I've been told by an acquaintance that both my Pentax F 35-70 3.5-4.5 and Sigma DL Macro Super 70-300 are very good full-frame lenses and to hold on tight to them. But what makes them full-frame? What other lenses should I be keeping an eye open for? I imagine once the new body is released there will be a scramble for some of them. That's assuming of course that it's all it's rumored to be.

Lenses made for film makes them full frame compatible. So all Pentax K, M, A, F and FA series lenses are full frame. All 3rd party lenses that were made for film are also full frame.

Seb

[gatorguy]

So it's that easy? Thanks!

[TER-OR]

Yes, that easy. DFA are also FF-capable. There's a thread somewhere testing various other DA series lenses - some are FF.
With third-party you'll have to do some more research, look at the lens reviews.

[max_pyne]

Pentax:
D-FA= FF
DA= APS-C normally but:
DA* 55, 200 & 300 = FF
Sigma:
DG= FF
DC= APS-C
DN= Mirrorless

[Nowhere Matt]

I just wondered if we can also say that all full frame lenses have a movable aperture ring? I know the DA lenses have no movable aperture ring but do other lens makers follow this path and make their APS C and digital lenses with no aperture ring?

[normhead]

The DA 35 ƒ2.4 doesn't have wan aperture ring, but it's full frame compatible.

[filoxophy]

For better or worse, the aperture ring is going the way of the dodo. None on any new/redesigned DFA/FA glass since the DFA 100mm Macro. New 70-200 and 150-450 are DFAs with no ring.

---------- Post added 03-05-15 at 08:48 AM ----------

DA* 55, 200 & 300 = FF

Yes, and more. 35/2.4, 50/1.8, 40/2.8...

[alamo5000]

It would be easier to identify the crop only lenses., which in the modern line up are mainly your DA series and DA Limited lines. I think the * lenses are crop as well.

Of current production all the FA series is FF.

Everything else is full frame.

---------- Post added 03-05-15 at 08:04 AM ----------

Keep in mind there may be some designated crop lenses that could work on a FF too but those are exceptions not rules.

[clackers]

[/COLOR]Keep in mind there may be some designated crop lenses that could work on a FF too but those are exceptions not rules.

There are plenty, Alamo.

Generally, most non-UWA primes are okay, most zooms aren't

Check the experiences (and pictures) of the film and A7 shooters in this forum for specifics.

[Na Horuk]

When threads like this pop up, I just post the following links.
Pentax lenses:
https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/31629-da-le...ts-thread.html
Third party lenses:
https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/183420-curr...me-lenses.html

Basically, full frame are all that say FX, FF, full frame designated lenses. The Pentax designation is DFA (and all the series before DA). Not full frame, are the ones that say DX, APSC, crop, and others depending on manufacturer (Sigma also uses DC? not to be confused with DC focusing motor). Some Pentax DA lenses are crop only, others work on FF to some extent (see links above). For every lens, you can just search reviews of it, and there will probably be people discussing that lens on various cameras.

[jimr-pdx]

Tamron's Di II and III are not FF capable.. just Di should be ok. Also, older Tamrons with no Di label are good for 36x24 but don't have the for-digital coatings.

[jatrax]

I would not be so sure there will be a scramble for those lenses either. For a number of reasons. First because there are a lot of them out there, more FF lenses than not in fact.

Second because a lot of folks have been hoarding them for years and those are going to come out of the woodwork.

Third because the FF is going to be expensive and thus not a lot of them sold.

Fourth because anyone buying that expensive FF is going to want really good glass to go with it. So some of the star or rarer ones might be in demand but common consumer glass is not.

So hang onto what you have but don't expect a windfall. That F 35-70 is very nice by the way don't let go of it.

[normhead]

The value of all the old FF glass will not be known until it's known if their image circle is big enough to work with SR on an FF camera. That won't be crtitical for macros etc. but for anything you're likely to want to walk around with, it will be very critical. The lens that are going to be desirable will be those that are sharp , flare and purple fringing resistant and SR compatible. Personally, I think an over haul of the line up with HD coatings, and more correction and faster ring motors is long overdue.

If they had made that 20-40 FF compatible.... from where I sit right now it looks like a totally missed opportunity.

[VoiceOfReason]

I am sure that my Sigma 24-70, Tamron 70-200, Sigma 70-300, and Sigma 150-500 will be fine on FF since they all are in use on Canikon FF cameras.