Originally posted by philbaum I wasn't aware of that. Frankly, i have not tested my K5 with a manual lens yet but now its on my list
Its important to know what you tested.
I assume you tested your K5 with a split lens focusing screen, and you have not tested your K5 on a MF lens without a split lens focusing screen - is that correct?
Hi, and thanks for the responses so far.
Allow me to expand on my initial experiment in hopes of clarifying things a bit better.
The first thing I did was put a manual lens on my camera. In this case, lets say the SMC-A 50/1.4 set at f/2
After this, I closed-in and used catch-in focus. Held down the shutter, beep and took the shot. After examining the image, it was severely front focused. So I though... okay, it was probably due to movement. So I tried again, except this time, without catch-in focus(manual shutter). Aim, focus, beep/confirmation indicator on, fire! - Same thing... severely FF image.
Okay I thought... I'll check with LV.
Focus... fire... spot on!
So now I was thinking.. well maybe I have a FF big after all?
So I grabbed an AF lens and tested with same conditions... and it was spot on!
So now I'm thinking... okay, maybe this is the AF module acting-up due to very wide aperture. So I grabbed my A/50/1.4 and adjusted it to f/3.5. Took a shot... and the same thing happened. Tried with smaller apertures and found it to be consistent. Though eventually, focus was achieved due to the broader DOF.
So now I'm wondering how it is possible for an AF lens to be spot on using AF while a MF lens is returning giving bad AF indicator data. My only resolve is that the MF indicator is somehow influenced by the focusing screen. But... that doesn't make sense to me as I was under the impression that the AF indicator was established by the AF same module...?!?
This is really confusing tbh,
In any case, I'm open to any tests/and or ideas that anyone might have to try and establish what is causing this strange behavior.
PS. I have 0 lens corrections in my camera. I shoot RAW and/with all setting off.