Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
01-27-2011, 04:09 PM   #16
Senior Member
Capslock118's Avatar

Join Date: Apr 2010
Location: New Haven, CT
Photos: Gallery
Posts: 173
hey you can probably start a business with this idea!

buy canons, dremel them, stamp a new logo "K-EOS 721" and market it as Full frame 100% Pentax compatible.

i'm sure no body would notice...

01-27-2011, 04:27 PM   #17
Pentaxian




Join Date: Jul 2009
Location: Seattle
Posts: 6,929
Congrats on your new camera. But smashing APS-C subject isolation against the wall is a bit extreme. I mean, lots of us have shot FF cameras long before there was digital and are familiar with the isolation difference.

Last edited by tuco; 01-27-2011 at 04:50 PM.
01-27-2011, 06:33 PM   #18
721
Forum Member
721's Avatar

Join Date: Feb 2010
Photos: Albums
Posts: 58
Original Poster
Thanks for the comments, everyone!

@Urkeldaedalus:
I see. Unfortunately I do not have an awful lot of time for taking pictures at the moment, but I will see what I can do.

@tuco:
Hm? I used a hyperbole as a figure of speech. Maybe I am just a bit slow right now, but I do not think I get your point.
01-27-2011, 07:01 PM   #19
Ash
Community Manager
Loyal Site Supporter
Ash's Avatar

Join Date: Mar 2007
Location: Toowoomba, Queensland
Photos: Gallery | Albums
Posts: 22,678
Mate these are impressive, especially the A* and DA ltd stuck on the 1D!
Absolutely great results.
Pretty gutsy doing that kind of surgical intervention on that fine camera.
Thanks for sharing.

01-27-2011, 08:49 PM   #20
Pentaxian




Join Date: Jul 2009
Location: Seattle
Posts: 6,929
QuoteOriginally posted by 721 Quote

@tuco:
Hm? I used a hyperbole as a figure of speech. Maybe I am just a bit slow right now, but I do not think I get your point.
I see. I just interpreted that you saying shallow DOF on that new camera literally and totally blows a your K-7 out of the water in obtaining thin DOF with those fast lenses. Yet I have no problem with paper thin DOF with my 85/1.4 and 50/1.2 on an APS-C and really haven't noticed a DOF difference that I would describe as phenomenal when I use those same lenses on a FF film camera.
01-27-2011, 11:19 PM   #21
Site Supporter




Join Date: Jan 2011
Location: San Francisco
Photos: Gallery
Posts: 61
Or use a 35mm film camera??



QuoteOriginally posted by 721 Quote
That is exactly what I did it for, in order to achieve shallow depth of field. Larger sensor means wider angle of view means I can get closer to the subject or use a longer focal lenght for the same framing means less depth of field.

To pull off a comparable shot (perspective, framing and depth of field) to the Aprilia one with a Pentax crop DSLR, one would need something like a 55mm/0.95 lens - preferably one that has the wide open performance of the A*85. For the second shot one would need something around 35mm/0.8. I imagine one might have some difficulties finding such lenses...
01-28-2011, 12:12 AM   #22
Senior Member




Join Date: Apr 2010
Location: California
Photos: Albums
Posts: 122
Hey that's pretty cool! Sounds like a fun project, maybe when the 1Ds is a little cheaper I might try that for myself.
01-28-2011, 12:23 AM   #23
Veteran Member
RioRico's Avatar

Join Date: Jun 2008
Location: Limbo, California
Posts: 11,264
QuoteOriginally posted by Urkeldaedalus Quote
I know a way I can get a pretty cheap Canon 5D to experiment on
I suppose the HOW and WHERE is a trade secret?

01-28-2011, 07:14 AM   #24
721
Forum Member
721's Avatar

Join Date: Feb 2010
Photos: Albums
Posts: 58
Original Poster
QuoteOriginally posted by tuco Quote
I see. I just interpreted that you saying shallow DOF on that new camera literally and totally blows a your K-7 out of the water in obtaining thin DOF with those fast lenses. Yet I have no problem with paper thin DOF with my 85/1.4 and 50/1.2 on an APS-C and really haven't noticed a DOF difference that I would describe as phenomenal when I use those same lenses on a FF film camera.
I suppose there is not much sense in arguing over such elastic terms, but considering that a crop camera would have cropped any of the posted pictures to less than half of their area, I actually do find the difference quite drastic.
Whether that is necessary for one's style of shooting is a whole different question, of course. Say, for close-ups I have been (and still am) pretty happy with what my crop cameras produce(d), but not so much once I wanted to include more of the surroundings.


QuoteOriginally posted by jimmm18 Quote
Or use a 35mm film camera??
Hm yeah, good point. But that would have been too easy. Plus, it would not be digital. Plus, I could not brag here about probably having the first 135 DSLR that can mount Pentax-K lenses (Well, okay, apart from that MZ-D prototype).
01-28-2011, 11:52 AM   #25
Pentaxian




Join Date: Apr 2010
Location: Wiltshire/Hampshire
Photos: Albums
Posts: 1,694
Ballsy!

The obvious solution would have been:



But God only knows how much that little combo would set you back!
01-28-2011, 02:23 PM   #26
721
Forum Member
721's Avatar

Join Date: Feb 2010
Photos: Albums
Posts: 58
Original Poster
The lens alone would cost me quite a bit more than my whole A*85+1Ds combo, even when buying a used one.

But yes, the 85L is one of the few Canon lenses that I really want to try out some day. Helluva lens. Although, according to 16-9.net, the A*85 is by no means worse, rather just the opposite. It is just not f/1.2. But then again, it is smaller and lighter, does not have that weird focus-by-wire-stuff for manual focusing and its lens coating seems to look better.
01-28-2011, 03:37 PM   #27
Veteran Member




Join Date: Dec 2008
Location: Iowa
Photos: Gallery | Albums
Posts: 1,368
QuoteOriginally posted by RioRico Quote
I suppose the HOW and WHERE is a trade secret?
Haha, no secret. A guy I'm doing wedding second shooting for already has his Canon Mrk IV and 5D Mrk2 so he may be looking to sell his 5D.
01-29-2011, 03:59 PM   #28
721
Forum Member
721's Avatar

Join Date: Feb 2010
Photos: Albums
Posts: 58
Original Poster
One more for Urkeldaedalus:

SMC 30mm/2.8 @ f/16
01-29-2011, 04:26 PM   #29
Veteran Member
Steve Beswick's Avatar

Join Date: Apr 2009
Location: Ontario, California
Photos: Gallery
Posts: 1,484
QuoteOriginally posted by 721 Quote
... but considering that a crop camera would have cropped any of the posted pictures to less than half of their area, ...
You might want to double check your math. The correct amount is two-thirds.
01-29-2011, 04:37 PM - 1 Like   #30
721
Forum Member
721's Avatar

Join Date: Feb 2010
Photos: Albums
Posts: 58
Original Poster
QuoteOriginally posted by Steve Beswick Quote
You might want to double check your math. The correct amount is two-thirds.
?
I object!

1/1.5 = 1/2.25

The edge lenght or diagonal is 2/3, but the area is 1/2.25 which is less than 1/2.
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!
box, dslr, ff, full-frame, k7, lenses, mirror, pentax, pentax full frame
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
No Pentax Full Frame DSLR, What to Do Now Then? RiceHigh Pentax DSLR Discussion 95 07-19-2014 10:57 AM
Why doesn't Pentax develop full frame DSLR? fast_boat Pentax DSLR Discussion 18 12-11-2008 08:46 PM
Official: New DSLR Body is Coming; Full Frame Model is Under Planning! RiceHigh Pentax News and Rumors 78 08-04-2008 06:18 PM
Full Frame Pentax DSLR Wheatfield Pentax SLR Lens Discussion 0 07-21-2008 06:43 PM
So It's True....a Full-Frame 'Professional' Samsung Dslr Coming !!!! Confused Pentax DSLR Discussion 9 05-02-2008 04:12 PM



All times are GMT -7. The time now is 05:38 PM. | See also: NikonForums.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