DPReview.com is closing April 10th - Find out more

I'm not convinced that Sigma actually wants to sell cameras . .

Started May 7, 2015 | Discussions thread
xpatUSA
OP xpatUSA Forum Pro • Posts: 23,017
Re: I'm not convinced that Sigma actually wants to sell cameras . .
2

goblin wrote:

xpatUSA wrote:

...reasonable goals for my SD14 might be around 7,000. And an SD1M, around 4,000.

Thanks Ted

How does that translate for users ? Are those numbers an apples for apples comparison (Oy Caramba ! That would mean that compared to the SD1m the SD14 is 1.75 times more... errr... well, it's a bigger number, so it must be more... more... more what actually ? It's more, so it's better, right ??? ), or are those only values to keep in mind when setting each specific camera to obtain results specific to said camera ?

Fear not, it only has meaning for pedants like myself. In more sane environs, the camera manufacturers tend to make the so-called raw-data equal to the analog-to-digital converter output which, in turn, is about the same as sensor dark to sensor saturated. So, with a 12 bit converter we could reasonably expect a saturated sensor to cause a raw value of 2^12-1 = 4095. Over-simplified of course, for example, Canon adds 1000 or so to their raw data so that would be 5095. With Sigma, it's just a crap-shoot

For your purposes, it really matters little how the raw data is scaled because SPP makes sure that all you'll see is 0-255 on the color picker and the histogram will be of already-converted raw data into the color space of your choice.

-- hide signature --

Pedantry is not a felony.
Ted

 xpatUSA's gear list:xpatUSA's gear list
Panasonic Lumix DMC-LX1 Sigma SD9 Panasonic Lumix DC-G9 Panasonic Leica DG Macro-Elmarit 45mm F2.8 ASPH OIS Sigma 17-50mm F2.8 EX DC OS HSM +11 more
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow