JensR

The original accusation was that selling under different brands is automatically disingenuous. My example proved that this is not the case.
Now some people are moving the goal posts by saying that...

Volkswagen sells cars as VW, Skoda, Seat, Audi (If you are from the US, just google "brands of GM") - using different brands to segment the market is in itself not suspicious.

Hi Joanathan, interesting - any source for that? The optical diagrams seem to show slightly different curvatures on a couple of elements between the FA and Takumar.

Come on, don't insult me if you want to have a discussion, Alex, I know you can do better. Your juxtaposition of playing devil's advocate and understanding doesn't even make sense.
Using your...

I don't really doubt that this lens is a Pentax one.
And of course they are not lying, but just to play devil's advocate (you picked up on the vagueness of the reference to the zoom development),...

@photomedium
It is a 50mm lens with state of the art design.
dpreview certainly did not imply that it sucks.
And whether Canikonys are "far better cameras" than the K1, is debatable, unless all...

I don't think you are balanced in your review of the review, Alex.
They mention sturdy design and sealing, good focus ring, decent AF, great sharpness, great bokeh, great sunstars.
I guess they...

I am not sure where in that interview they state that (all) star and limited are original Pentax designs.
In that interview they also say "we began development of three large-aperture zoom lenses...

I did not say it was "identical".
I said it dates back to the 60s, and I maintain that's right.

You need to go back further than the M ;)
The M is different, because Pentax went with (M)iniaturisation in that era, but the design of the FA is almost identical to that of the Super Multi Coated...

I don't know of any reliable source stating this clearly, can you provide one?

That does not mean the hands-on report is wrong. To me the write-up sounds fair and balanced. For that price, people are right to expect the "positive qualities" and not many "shortcomings" and so...

Well, you can make that comparison yourself. Look up the prices and post them here for everybody to see.

Fact is, the Sigma is the best AF 50/1.4 for SLRs out there. Third party or not.
Canon has...

I'm looking forward to a test against the ancient optical design of the FA 50/1.4 (it dates back to the 60s). I have no doubt the new lens will be better, but it will be interesting to see how much.

If your laptop is fitted with a SATA CD/DVD drive, you can often take it out and instead mount an HDD or SSD in that spot using an adapter.

This looks interesting, but yes, we need it in camera!
https://www.rawdigger.com/howtouse/rawdigger-histograms-what-is-the-raw-histogram

> But please do not confuse people by making fuzzy or incorrect statements

I am not sure what you found fuzzy or incorrect - your example of changing ISO at same aperture and shutter certainly...

> ISO isn't an exposure guide,

No one said it was.

> (the curve drawn is not accurate at all)

It is an accurate but simplified rendition of scientific test...

A RAW histogram is entirely possible, but for humans to quickly use it, we need a logarithmic y-axis when displaying it. That is not the same as data processing or a profile, and it has been done...

(Edit: please note that this thread has been moved from the Pentax SLR forum) According to imaging resource, the old one had: "14 elements in 11 groups, including one Low Dispersion and three ...