Originally posted by garywakeling
TLDR: The DFA* lens is superior in image output and it overcomes all other factors in light of this (pun intended).
Replacement DFA* has arrived and I’ve had more gos at it. It’s a stickler to the body almost every time.
Thanks Gary - I think your reply summed everything I wanted to say having spent some time with both lenses in much less words and more pictures. I’ll summarise my learnings:
A. General Handling
Both the DFA* 50 f1.4 and DFA 24-70 f2.8 are hefty. They are frankly comparatively a PITA to lug around as someone who is used to the compactness of the APS-C/Limited and older 49mm-ish filter sized film era systems. The 200g ish difference between the two of them is bothersome to me and the slightly larger 24-70 (therefore less dense) package is perceivably more balanced when mounted to the K1ii body.
Subjectively, my impression does put the tactile/handling/physical build feel of the DFA* above a notch with comparative top of the line Zeiss Planar T* 50 f1.4 and G Master 50 f1.2, both from Sony.
B. General Image Ouput
The DFA* 50 f1.4 definitely feels like the more ‘reliable’ workhorse here in terms of putting out images that I prefer/like more. The DFA 24-70 f2.8 leaves me always wanting that ‘it could have been better’ - could I have held the shot with less shake? Shall I bump the ISO a bit higher for the next shot? As such, the 24-70 IMHO does not deserve the * suffix/status
Being able to obtain less noisy and sharper outputs wide open is a deal breaking factor for me over versatility of the lens. Am of the school of thought that if you’re in a favourable setting you’re to take the shot - the hardware should not let you down. That was the premise for the move to the FF system from APS-C.
As wadge22 has succinctly coined, “The excellent prime will mean every shot you take can be superb, but you can't necessarily take every shot.“ I am leaning to superb shots here and the 24-70 has become moot.
Again subjectively - I would rank the DFA* on par if not better than Sony’s Planar T* 50 f1.4 and G Master 50 f1.2. The fact that the current line of FF alpha bodies are just *&^% to hold onto/handling ergonomics vs the K1/K1ii makes this an academic point. I do actively suggest to others to consider modular video/cine cam systems and skip the FF alpha bodies if that is the prevalent task.
C. Pricing
I know that many have commented that the 650USD price of ownership for both is extremely tempting but the dry cabinet mop-up crew side of me tells me to stay the course above and not accumulate anymore ‘jack of all trades and master of none’ glass like the 24-70 despite its ‘pro zoom’ reckoning by others.
D. Other Speculations/Observations
These do come into play in terms of dictating the route map/system of modern lens I’ll adopt moving forward with the DFA* 50 f1.4 as the first in line.
Lenses designed for video capture - having some experience with the top end of the Sony alpha side of things, are the newer larger FA lenses from Pentax a hint at professional video capture as things to come? They have done quite well for themselves from an optical engineering to commercialisation point of view by re-hashing more traditional formulas into the Limited range (but the recent DFA*21mm Ltd has bucked this trend).
On that segway - considering a wide-normal-tele-ish set-up - having the DFA* 21 and DFA* 85 fill in before and after is what I am leaning towards as end of line for me for the K1-based system.
This ends my closing remarks for this post/topic but I’ll leave a curveball right here - what of other 50s outside of this question?
I’ll end it off by saying that if manual focus (no cats or running kids) is acceptable and weather sealing ain’t dealbreaking - the SMC M 50 f2 gives you almost equivalent image output…you have to ask yourself for about 600USD more, is SDM AF and AW worth the premium of 600USD? Could you just hoard, stash and thrash a lot of 6 pieces of these real nifty fifties…
My finance director will probably strong arm me towards the above and take the 24-70



