Web Analytics RiceHigh's Pentax Blog: June 2021

Friday, June 25, 2021

Three New Pentax/Ricoh Cameras in the Pipeline?

Source: e-Sertifikasi Portal (in Indonesia) via Nokishita @Twitter (in Japanese)

The models R02020, R03030 and R05010 are new, which should be under development. Whether they are in the Ricoh or Pentax brand is yet unknown, though. Furthermore, I list below the recent registered R-numbered camera models by Ricoh for your better wild guessing. ;-p

R01010: Pentax K-1 Mark II

R02010: Ricoh GR III

R03010: Pentax K-3 Mark IIIkey

Saturday, June 12, 2021

Image Corner Blur Issue with K-3 III (Head-to-head Comparison with KP)

Have had my K-3 III for over one month now and tested it with my various DA/FA/DFA lenses (mostly primes) but there is a strange issue discovered.

It is all about the unexplainable corner (or simple off-centre) softness in the images taken with the K-3 III. To illustrate the problem, here we go with the sample set below, with a pair of images taken using my K-3 III and KP with the same lens (which is a HD-DA 40mm Limited), at almost the same time and with the same exposure parameters.

Let's see the 100% centre crops of the pair of images, which are perfect in focus. I captured also the EXIF data on screen for our easy reference (Click pictures to Enlarge):

Then, here are the left side of the images in 100% crops:

And then, here are the right side of the images in 100% crops:

This problem really drives me nuts. I really didn't expect the new flagship camera would produce much lower resolution at off-centre in images than its predecessor model of 2017. It's really much frustrating after all.

It seems that the new sensor of the K-3 III has some kinds of incompatibility with the existing Pentax lens lineup optically, which is a hardware issue but not a software one, I believe. Note that I had already turned off all the lens correction functions as well as the AA filter simulator to rule out the possibility of the issue is being caused by software or other factors.

Tuesday, June 01, 2021

Checking the DPR Claimed K-3 III "Shutter Shock" Issue

With DPR claiming that the "shutter shock" of their K-3 III under test was unavoidable by whatever means at low ISO speeds of 100 and 200 with a lower shutter speed, I have tried to resemble their test using the same ISO, time value, lens model and focal to verify the case. Here we go:

ISO100 ISO200  

So, any shake and "shutter shock" that you can see? I don't, do you? :-D And, I took my shots handheld through the finder, without any tripod but with SR turned on.