Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-10-2015, 08:52 PM   #1
Site Supporter
Shanti's Avatar

Join Date: Jul 2012
Location: Western Denmark
Photos: Gallery | Albums
Posts: 903
Round lens Square sensor

What if the new FF has a square sensor?? anyone think the same. If the new teles cover more than FF (35mm) then that could be the reason. A square sensor that is cropped to what format is needed,also for pixel shifting maybe.The prism looks alot like an old 6x7 MF Pentax...
I do wonder.........

02-10-2015, 08:59 PM   #2
Site Supporter
PentaxJax's Avatar

Join Date: Aug 2011
Location: Eastern shore
Posts: 135
QuoteOriginally posted by Shanti Quote
What if the new FF has a square sensor
I guess you would not need a grip then
02-10-2015, 09:17 PM - 1 Like   #3
Pentaxian




Join Date: Jul 2009
Location: Seattle
Posts: 6,987
QuoteOriginally posted by Shanti Quote
...The prism looks alot like an old 6x7 MF Pentax...
Yes, it does look like the newer Pentax 67II. I realize the branding on Pentax's 6x7/67/67II may be confusing to the uninitiated but for those of us shooting them it's like saying your K5II looks like a K-01. So here is what my Pentax 67 looks like in the spirit of learning more about Pentax's legacy product line.




02-10-2015, 09:22 PM   #4
Site Supporter
Shanti's Avatar

Join Date: Jul 2012
Location: Western Denmark
Photos: Gallery | Albums
Posts: 903
Original Poster
yeah its the newer one I meant & used long ago ..thanks for the info

02-10-2015, 09:25 PM   #5
Moderator
Site Supporter
Blue's Avatar

Join Date: Jun 2008
Location: Florida Hill Country
Photos: Gallery | Albums
Posts: 17,181
QuoteOriginally posted by Shanti Quote
What if the new FF has a square sensor?? anyone think the same. If the new teles cover more than FF (35mm) then that could be the reason. A square sensor that is cropped to what format is needed,also for pixel shifting maybe.The prism looks alot like an old 6x7 MF Pentax...
I do wonder.........
To be a true full frame 35mm sensor, the sensor would have to be 24x36, otherwise it would be another format.
02-10-2015, 09:28 PM   #6
Pentaxian
Dr_who's Avatar

Join Date: Jun 2009
Location: Edmonton, Alberta, Canada
Photos: Gallery | Albums
Posts: 686
QuoteOriginally posted by Shanti Quote
What if the new FF has a square sensor?? anyone think the same. If the new teles cover more than FF (35mm) then that could be the reason. A square sensor that is cropped to what format is needed,also for pixel shifting maybe.The prism looks alot like an old 6x7 MF Pentax...
I do wonder.........
It looks like dozens and dozens of Pentax 35 mm cameras that have prisms as well.
02-10-2015, 09:44 PM   #7
Pentaxian
Paul the Sunman's Avatar

Join Date: Aug 2011
Location: Melbourne
Photos: Gallery
Posts: 1,176
QuoteOriginally posted by Shanti Quote
What if the new FF has a square sensor?? anyone think the same. If the new teles cover more than FF (35mm) then that could be the reason. A square sensor that is cropped to what format is needed,also for pixel shifting maybe.The prism looks alot like an old 6x7 MF Pentax...
I do wonder.........
The image circle for 36x24 FF has to have an image circle of at least 6√13 = 21.63mm radius for the corners to be covered. Existing lenses impose this constraint (ignoring hoods for the moment). A square sensor with the same radius image circle would have sides 6√26 = 30.59mm. Would you give up 5.41mm width for the extra 6.59mm height? A landscape photographer may not.

But why stop there? We have round lenses. Why not round sensors?
02-10-2015, 10:34 PM   #8
Loyal Site Supporter
AquaDome's Avatar

Join Date: Jan 2014
Location: New Carlisle, IN
Photos: Gallery | Albums
Posts: 1,437
I would be okay with a digital Pentax 6x6. Can I get an adaptor for my Mamiya TLR lenses?

02-10-2015, 11:32 PM   #9
Loyal Site Supporter
narual's Avatar

Join Date: Jun 2013
Location: South Bend (Notre Dame), Indiana
Posts: 1,942
Is the prism on the prototype really that large, or is it just an illusion from the angle the photo was taken at?

QuoteOriginally posted by Paul the Sunman Quote
A landscape photographer may not.
Didn't Ansel Adams prefer a 6x6 format for his landscape shooting, even if that's not how they ended up printed?
02-11-2015, 12:00 AM   #10
Senior Member
TomE's Avatar

Join Date: Sep 2006
Posts: 299
Ansel Adams proffered a 8x10 format and did contact prints of many of his photographs.
02-11-2015, 12:17 AM   #11
Site Supporter




Join Date: Mar 2011
Location: Fairbanks, AK
Photos: Gallery
Posts: 973
He mostly used large format cameras, 4x5 and 8x10's. Mostly for the movements, plus the size of the film.

A square format dslr wouldn't interest me unless the sensor was a full 6cmx6cm...
02-11-2015, 12:43 AM   #12
Pentaxian
Paul the Sunman's Avatar

Join Date: Aug 2011
Location: Melbourne
Photos: Gallery
Posts: 1,176
I think the main point of a square MF is flexibility to crop. A square image is sometimes "right", but not that often. So I agree with you; a smaller square sensor is less attractive.
02-11-2015, 12:58 AM   #13
Veteran Member




Join Date: Mar 2013
Location: Washington State
Posts: 379
They'll use what ever they can get from Sony. I don't think Sony makes a square sensor.
02-11-2015, 02:00 AM   #14
Pentaxian
Paul the Sunman's Avatar

Join Date: Aug 2011
Location: Melbourne
Photos: Gallery
Posts: 1,176
Astronomical sensors are square.
02-11-2015, 03:07 AM - 1 Like   #15
Pentaxian
Clavius's Avatar

Join Date: Feb 2011
Location: De Klundert
Photos: Gallery
Posts: 4,115
OMG, a square sensor would be so rediculously cool. I love to crop most of my pictures to square format. It's my slightly autistic brain that just can't handle the imperfect ratios of the hodge podges of image formats. A rectangle that's not perfectly square is like a circle that's not quite exactly round, it freaks me out. I'd pay top price for square screens as well. I wonder why they invented the strange ratios in the first place.
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!
150-450mm f4.5-5.6ed dc, ff, pentax news, pentax rumors, round lens square, sensor, square, square sensor
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
why are lenses round and not square Luuk General Photography 23 08-16-2014 08:21 AM
Why not a square sensor? Tony Belding Pentax Full Frame 32 05-10-2013 06:59 AM
Wacky Theory: Square-sensor Pentax FF? deadwolfbones Photographic Industry and Professionals 43 03-25-2012 04:14 PM
Rumour: K3D, 22 Mp, square sensor cateto Pentax News and Rumors 134 02-27-2009 11:45 AM
Pentax square format sensor -- or is it Nikon? filmamigo Pentax News and Rumors 5 02-17-2009 07:39 AM



All times are GMT -7. The time now is 01:17 PM. | 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