Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-01-2016, 11:16 PM   #1
Site Supporter




Join Date: Aug 2012
Location: California
Posts: 279
Speculation: real-world K-1 sample photos?

*** This is pure speculation ***

Few days ago, an user in a major Chinese Photography website "xitek.com" posted several pictures taken by an unknown
DSLR in the website's Pentax forum. A couple interesting observations:

[1] The user "qw0358" is widely known in the forum to have a very good connection with Ricoh China.
[2] All of the pictures have pixel dimension 1200 x 801.
[3] He claims that these pictures have been resized only, no other post-processing.

Now here is the fun part. It's been rumored that the new K1 may feature SONY's 36.4MP or 42MP sensor. The former's maximal
pixel dimension is 7360 x 4912; while it is 7952 x 5304 for the latter. Let's look at the 36.4MP case: If the linear dimension 7360
pixels is downsized to 1200 pixels, a simple math shows that 4912 pixels should correspond to 800.8 pixels if the aspect ratio is
fixed. This is exactly the dimension of his pictures. You get the same answer for the 42MP sensor. So could these be real-world
sample photos of the new K1?

Again, this is pure speculation.

Here are two pictures from qw0358's thread. For those who can read Chinese, this is the original thread:
http://forum.xitek.com/thread-1542719-2-1-1.html


Last edited by odyseuss; 04-27-2016 at 12:47 PM.
02-02-2016, 12:00 AM   #2
Pentaxian




Join Date: Oct 2010
Photos: Gallery | Albums
Posts: 2,746
Oooooh' a real great rumour! But you could have a good point at there..
02-02-2016, 02:49 AM   #3
Pentaxian




Join Date: Jul 2009
Location: Tromsų, Norway
Photos: Albums
Posts: 955
QuoteOriginally posted by odyseuss Quote
Now here is the fun part. It's been rumored that the new K1 may feature SONY's 36.4MP or 42MP sensor. The former's maximal
pixel dimension is 7360 x 4912; while it is 7952 x 5304 for the latter. Let's look at the 36.4MP case: If the linear dimension 7360
pixels is downsized to 1200 pixels, a simple math shows that 4912 pixels should correspond to 800.8 pixels if the aspect ratio is
fixed. This is exactly the dimension of his pictures. You get the same answer for the 42MP sensor. So could these be real-world
sample photos of the new K1?
I think that is a very thin speculation basis. It's very very likely the aspect ratio will be 3:2, but the exact pixel numbers may depend on several non silicon factors. There is always a difference between real photosites on the sensor and image size output. The difference is caused by "black" pixels thats is only there for black level calibration, and edge pixels that does make its way into the de-bayer algorithm, but not out at the other side. Then there are pixels that are cropped away to get a total number dividable by 8 because its preferable for jpeg compression. There is possibly other edge effects and adjustments that make up the difference between real photo sites and output image size. In other words I don't take the 0.8 pixel as an indicator of anything.

You might be right about sensor choice, but I don't take this as an indicator. I would also like to know now, but I believe we just have to wait and see.
02-02-2016, 04:30 AM   #4
Pentaxian




Join Date: Feb 2015
Photos: Albums
Posts: 3,471
Well, regarding the photo gallery from pentax full frame digital, please post your photos here: https://www.flickr.com/groups/pentaxfullframe/

02-02-2016, 04:48 AM   #5
Loyal Site Supporter




Join Date: Mar 2015
Photos: Gallery | Albums
Posts: 5,761
Not a bad line of reasoning, and not a bad pair of pics if that's where it's really from. Not the full range of colours - very weak on greens and blues - but certainly nothing to complain about there!

We can but wait and see.
02-02-2016, 08:49 AM   #6
Pentaxian
Fogel70's Avatar

Join Date: Sep 2009
Location: Stockholm, Sweden
Photos: Albums
Posts: 1,741
Oh no!, there is snow in these images, so it must mean that the K-1 will be released at Christmas this year.

02-02-2016, 08:53 AM   #7
Pentaxian
bertwert's Avatar

Join Date: Jun 2015
Location: Golden, BC
Photos: Albums
Posts: 5,456
Like you say, pure speculation.
02-02-2016, 09:43 AM   #8
Pentaxian




Join Date: Apr 2007
Location: Romania
Posts: 9,253
QuoteOriginally posted by Fogel70 Quote
Oh no!, there is snow in these images, so it must mean that the K-1 will be released at Christmas this year.

Oh, no! This looks like 10-years-from-now snow, the K-1 must be postponed!

Does the author say anything about K-1, even once?

02-02-2016, 02:09 PM   #9
Site Supporter




Join Date: Aug 2012
Location: California
Posts: 279
Original Poster
QuoteOriginally posted by Kunzite Quote
Oh, no! This looks like 10-years-from-now snow, the K-1 must be postponed!

Does the author say anything about K-1, even once?
Not in the particular thread I mentioned. But he does have a couple threads where he gave a few very interesting
K-1 rumors. In these discussions, he sounded almost like he had tried out the new camera already. But we'll see
very soon, I'm sure

---------- Post added 02-02-16 at 01:19 PM ----------

QuoteOriginally posted by Simen1 Quote
I think that is a very thin speculation basis. It's very very likely the aspect ratio will be 3:2, but the exact pixel numbers may depend on several non silicon factors. There is always a difference between real photosites on the sensor and image size output. The difference is caused by "black" pixels thats is only there for black level calibration, and edge pixels that does make its way into the de-bayer algorithm, but not out at the other side. Then there are pixels that are cropped away to get a total number dividable by 8 because its preferable for jpeg compression. There is possibly other edge effects and adjustments that make up the difference between real photo sites and output image size. In other words I don't take the 0.8 pixel as an indicator of anything.

You might be right about sensor choice, but I don't take this as an indicator. I would also like to know now, but I believe we just have to wait and see.
Good to know the technical details you mentioned, and I agree with your analysis.
As I said, those are just my guess. It's February now, Spring is around the corner
02-02-2016, 02:22 PM   #10
Pentaxian




Join Date: Apr 2013
Location: Brisbane, Australia
Posts: 621
Not sure where you are going with this, the maths is simple alright and does not prove anything really.
02-03-2016, 12:40 AM   #11
Site Supporter
Deimos's Avatar

Join Date: Oct 2010
Location: Kingdom of Wonder
Posts: 1,708
I can't read Chinese, but I see a lot of posts in that thread with the text "K-1" haha. What are people saying there?
02-03-2016, 04:08 PM   #12
Senior Member




Join Date: Apr 2015
Location: Boston,MA
Posts: 219
Just read the thread, everyone knows this man had connection with Ricoh China
It seems like he got a k1 to test, that's what I learned from reading all post in this thread.
02-03-2016, 04:38 PM   #13
Pentaxian




Join Date: Apr 2007
Location: Romania
Posts: 9,253
Here's an easy way to find out: look at those pictures, is there only one eye in focus or both?
02-04-2016, 12:30 AM   #14
Pentaxian




Join Date: Oct 2010
Photos: Gallery | Albums
Posts: 2,746
I also looked at 'google translated' text, and seems so that this is from K-1, if you can trust internet. Why would it not be thou. AAAannd, if it is 42 MP sensor, it makes this interesting. we could mark one thing out from rumors at least.
02-04-2016, 01:46 AM   #15
Site Supporter
p38arover's Avatar

Join Date: Mar 2012
Location: Western Sydney, Australia
Photos: Gallery | Albums
Posts: 3,078
What about the sample photos on Ricoh's website stating the pix were taken with a camera under development?

QuoteQuote:
*shot with a camera under development. larger image's size: 1000px x 667px
http://www.pentax.com/en/pentaxff/
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
24x36mm, dimension, edge, full-frame, image, indicator, k-1, output, pentax, pictures, pixel, pixels, sensor, size, speculation, thread
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Sigma 30mm 1.4 art: Real world AF issues, how bad is it? AtitG Pentax SLR Lens Discussion 13 01-04-2017 01:54 AM
K-1 Speculation Winder Pentax Full Frame 138 07-17-2014 06:35 PM
Real World Tests of the SMC K 50 f/1.2 rparmar Pentax SLR Lens Discussion 62 01-06-2012 06:13 AM
Sigma 17-50 real world photos Armanius Pentax SLR Lens Discussion 11 04-07-2011 04:10 PM
K-7 Firmware 1.0 is Out! Plus Full Sized Sample Photos RiceHigh Pentax News and Rumors 6 05-20-2009 08:54 PM



All times are GMT -7. The time now is 10:06 AM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top