Latest or all posts or last 15, 30, 90 or 180 days.
Upgrade the memory of your 2020 iMac up to 128GB
877-865-7002
Today’s Deal Zone Items... Handpicked deals...
$1299 $829
SAVE $470

$340 $265
SAVE $75

$498 $348
SAVE $150

$1199 $849
SAVE $350

$179 $79
SAVE $100

$1299 $829
SAVE $470

$500 $238
SAVE $262

$180 $130
SAVE $50

$300 $130
SAVE $170

$130 $70
SAVE $60

$2997 $2497
SAVE $500

$3498 $2998
SAVE $500

$370 $280
SAVE $90

$4899 $4499
SAVE $400

$1000 $700
SAVE $300

$1699 $1149
SAVE $550

$280 $230
SAVE $50

$1899 $1499
SAVE $400

$4499 $3499
SAVE $1000

$2198 $1998
SAVE $200

$3998 $3498
SAVE $500

$1799 $1649
SAVE $150

$18599 $16599
SAVE $2000

$1149 $799
SAVE $350

$650 $450
SAVE $200

$199 $119
SAVE $80

$280 $200
SAVE $80

$1399 $1049
SAVE $350

$1199 $779
SAVE $420

$250 $200
SAVE $50

$1699 $1149
SAVE $550

$1499 $999
SAVE $500

$200 $125
SAVE $75

$70 $40
SAVE $30

$120 $35
SAVE $85

$189 $159
SAVE $30

$3899 $1499
SAVE $2400

$2999 $1999
SAVE $1000

$1699 $899
SAVE $800

$1698 $1198
SAVE $500

$1149 $799
SAVE $350

$1399 $1049
SAVE $350

$1498 $998
SAVE $500

$2797 $2497
SAVE $300

$280 $230
SAVE $50

$799 $499
SAVE $300

$899 $549
SAVE $350

$1699 $1149
SAVE $550

OWC Envoy Pro EX SSD
Blazingly fast Thunderbolt 3 SSD!

Up to 4TB capacity, USB-C compatible.

USB-C model also available


Great for travel or for desktop!

Pentax K1 Super Resolution File Format Details

See my Pentax K1 wish list at B&H Photo.

See the Pentax Super Resolution Mode discussion for an overview of the Pentax Super Resolution mode feature.

Pentax K1

The Pentax K1 (and K3 II) record all four shift-variant exposures into a single DNG files. Each exposure is 14 bits so each pixel has 56 bits of data: 14 bits for red, 14 bits (twice) for green, 14 bits for blue.

The images should be incredibly detailed, quite likely beyond even what a Canon 5DS R can deliver.

With 56-bit pixels (14 bit X 4), 14-bit raw files of data size of ~255MB megabytes should result, a bit larger with an embedded JPEG preview and metadata, perhaps 260MB.

Compression is used and appears to be lossless (waiting for confirmation). According to Alex Tutubalin of RawDigger:

According to DNG specs, lossy format is allowed only for 'linear /demosaiced/ 8-bit data' (so called Lightroom 'fast load proxy DNG' for faster editing in low res, than apply edits to full-res file).

So, I almost sure that Pentax K-1 DNGs will use lossless compression (no 4-shot K-1 samples on hands yet).

A 24-megapixel Pentax K3 II Super Resolution file should have a size of about 170MB. A sample file of size 129MB suggests a compression reduction of about 25%. Using that as a baseline, K1 Super Resolution raw files should come in around 50% larger, or 194MB. This will vary considerably if the compression is lossless, since it depends on the compressibility of the image.

36.4 megapixels X 14 bits per color X 4 colors per pixel
= 36.4 * 14/8 bytes * 4 = 255MB (uncompressed data size before compression)

The true color pixels in a full frame sensor will almost certainly make the Pentax K1 the finest black and white camera on the market. It should surpass the Leica M Monochrom with ease, delivering far more detail and far more tonal flexibility.

I’m excited at seeing what the K1 will deliver. I’ve wondered why Sony has not implemented this kind of feature in the A7R II, and of course CaNikon have nothing of the sort or even any in0-body image stabilization. Kudos to Pentax.

RawDigger info for a Pentax K3 II Super Resolution image is shown below. Observe that all four exposures are preserved (both green channels). Presumably this behavior will be the same in the K1.

RawDigger info for 129MB Super Resolution image from Pentax K3 II

As shown by the RawDigger histogram, observe how incredibly gap-free and smooth the very dark tones are (values 0..1024). This speaks to exceptional quality in dark tones due to the 4-frames taken together.

RawDigger histogram for 0..1024 for 129MB Super Resolution image from Pentax K3 II

 

OWC Accelsior 4M2 PCIe SSD
6000 MB/sec!
Mac or PC.


Ideal for Lightroom, Photoshop, video.
Capacity up to 16TB!
Holiday Deals on Camera Gear


Sony, Nikon, Canon, Fujifilm, more!
OWC Envoy Express

World’s first Thunderbolt 3 M.2 NVME SSD enclosure.

Super fast, bus-powered, 3.3 oz, DIY easy, rugged and compact!


See also OWC Express 4M2
√ No more slow and noisy hard drives!
OWC Thunderblade Thunderbolt 3 SSD

Blazing fast, up to 16TB.

YEE HAH!



√ No more slow and noisy hard drives!

Save the tax, we pay you back, instantly!
View all handpicked deals...

WD 12TB Ultrastar 7200 rpm SATA 3.5" Internal Data Center HDD (Retail)
$340 $265
SAVE $75

diglloyd Inc. | FTC Disclosure | PRIVACY POLICY | Trademarks | Terms of Use
Contact | About Lloyd Chambers | Consulting | Photo Tours
RSS Feeds | Twitter
Copyright © 2020 diglloyd Inc, all rights reserved.