BorisAkunin

Indeed, most indeededly

I can't understand why CANIKONTAXONY aren't trying to compete with the Sigma 30/1.4

Pentax builds a 55/1.4 (84/2 in 35mm equiv. terms) and Fuji has a 56/1.2 (85/1.7) planned for 2014.

The Tamron 60/2 (91/2.8), Pentax 70/2.4 (106/3.2) and Pentax 77/1.8 (117/2.5) are quite good for...

At first I overlooked that this is a lens for the "1"-system, I was ready to sell my Pentax gear and switch to Nikon when I noticed that it's not for DX.

The Sigma 30/1.4 needs some competition,...

Yes, they've started counting, that makes it even worse. They'll ruin the name forever!
I would love it if Pentax would built a line of "retro" cameras... but when I say cameras I don't mean...

Right, another company on my personal boycott list...

(I'm switching my K-5 to PEF in protest)

You're going to have to hold the MX-1 very close to your eye to make the display fill the same area of your eyes field of view that the MX Viewfinder fills and your cornea will be touching the LCD...

You're going to have to hold the MX-1 very close to your eye to make the display fill the same area of your eyes field of view that the MX Viewfinder fills and your cornea will be touching the LCD...

You're going to have to hold the MX-1 very close to your eye to make the display fill the same area of your eyes field of view that the MX Viewfinder fills and your cornea will be touching the LCD...

It may be a fine compact camera but surely it's a stupid idea to call it MX.
The original MX had one of the best SLR viewfinders ever made and while I'm quite happy with the recent trend of "retro"...

It may be a fine compact camera but surely it's a stupid idea to call it MX.
The original MX had one of the best SLR viewfinders ever made and while I'm quite happy with the recent trend of "retro"...

[Part 6]
There may however be technological advantages on the side of smaller sensors due to higher production volumes, more sensors per wafer, etc.

In my view the main reason to choose a larger...

[Part 5]
Example 2 - Same pixel density:
Let's compare two not quite so hypothetical sensors that employ the same technology, the only difference beeing size and therefore total MP.
The noise per...

[Part 4]
Example 1 - Same number of pixels:
Let's compare two hypothetical sensors - one APS-C and one FF - that are placed behind the same optically perfect lens.
Both fit comfortably inside the...

[Part 3]
When projected across the same flange distance, a lens with a given f-stop (i.e. a 50mm f/1.4) will project an image circle with the same Light density onto the sensor,
regardless of it's...

[Part 2]
the ratio between CoC and the sensors linear dimensions needs to be constant for all sensor sizes (therefore the physical CoC on which the DOF measurement is based needs to change...

[Part 1]
It seems to me like this argument hinges on definitions, I think I'll have a stab at it myself...

DOF-Equivalence:
As far as DOF is concerned, the relevant variables are focal length,...

While we're making wish lists:

14-28 f/2.0 (FF-equiv.: 21-43 or 22-45 [Canon])
28-55 f/1.7 (FF-equiv.: 43-84 or 45-88 [Canon])

For me 28-30mm is the perfect transition point on crop sensors, am I...

Quote from the Pentax K-5 Review:
"RAW (DNG): 6.3 - 7 fps for 24 frames, then 1.2fps. Approx 18 seconds to recover."

I don't know if the K-5 II/IIs performs any differently (I doubt it).