When I started this thread some 18 months ago, I was considering the Df and Pentax. I decided to go with a preowned Df that surfaced. Technically the full-frame camera has plenty of merits. But over the few years I've also encountered plenty of shortcomings, many of which overcome.
I am now getting renewed interest in seeing what Pentax has to offer in the field of DSLR.
The old Pentax bodies such as K5, K3 are very affordable and still current, meaning they hold up.
But a lot also changed. Pentax is withering as a brand. I can't see local (Finnish) retailers stocking the APSC Pentax cameras or lenses anymore. They only sell the K1 Mark 2 with a select few Pentax DFA lenses.
As much as I am a FF-head and especially appreciate the optical limits the image format imposes on a DSLR camera, I can't for the life of me think of an interesting Pentax lens for full frame. Instead most all the interesting gems are DA. Not only that, I am seeking a nice and portable telezoom setup and here a crop sensor will help tremendously.
Pentax KP is a lightweight body and very interesting but its availability is tough here in Europe. Of course I'd prefer to get a silver body any time when it's reasonably possible. A silver KP appeals to me in the same way the silver Pen-F or the silver Fuji X100 appealed before it. But if I just want to try this brand out, shelling 750 € for a used body is a steep step. My brain keeps saying I should try a cheaper sensible body, maybe in a 300 € price bracket before making further decisions.
By the way, the two big shortcomings of Nikon Df that really irritate me.
- Autofocus (single AF) in low light gives up very easily. Especially with a slow zoom like an f/3.5 it stops working relatively early into the evening, which is just a waste, when you consider how far the sensor is capable of going, sensitivity-wise.
- Focus accuracy with wide angles is just, in a word, hopeless. With a 20mm f/1.8 MF lens the focus confirmation dot was just hopelessly useless. Couldn't be relied to make a sharply focused 4-by-6 photograph with the aid. Neither am I getting much enjoyment out of a 28mm f/2 lens.
I have been hopeful and have read good things about Pentax really drilling into S-AF focus accuracy and low-light focusability. I guess they'd better, since they also seem to specialize to slower lenses.
One thing to add. I have in my mind pitted the APS-C Pentax cameras in the same category as my µ4/3 cameras. Maybe right, maybe wrong. That's how my impression is. The thrilling question is, can any Pentax "70-200/300" equivalent lens match the overall package of the sensational Panasonic 35-100 f/4-5.6? It's a tough battle and I am not sure it can be won.