Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
06-21-2016, 01:17 PM   #76
Senior Member




Join Date: Dec 2013
Posts: 223
QuoteOriginally posted by Kozlok Quote
Sadly, the biggest disappointment most feel when getting the K-1 is that they don't suddenly become better photographers. Maybe the next camera will just choose the subject and lighting and take the picture for you?
if the subjects boring no amount of lighting is gonna make it look better. but there is one camera that can make bad subjects look interesting - Ricoh Theta S :P


QuoteOriginally posted by biz-engineer Quote
Some of the old lenses may outresolve the new ones...
dont get your hopes up a lot of old and secondhand have been thru alot of abuse and neglect that any advantages they had has been replaced with scratches mold and fogging
one of the best vintage primes in existence is 58mm f/1.2 Noct-NIKKOR but a mint one costs more than a new Zeiss 55mm f1.4 Otus

06-21-2016, 02:06 PM   #77
Pentaxian




Join Date: Jul 2009
Location: Tromsø, Norway
Photos: Albums
Posts: 955
QuoteOriginally posted by Paul MaudDib Quote
Tiny P+S sensors like the FZ1000 and Q are the least likely to outresolve a lens. The Pentax-Q is diffraction-limited from f/4.
The diffraction limit are not a wall. Its a very gradual transition where you will get diminishing returns of increasing pixel density. And I'm not only talking about the difference in diffraction limit due to different wavelengths.

QuoteOriginally posted by Paul MaudDib Quote
Film picks up light at any angle, but digital sensors capture it best when it's coming straight inwards.
Film are quite blank and reflective too. With decent mircolenses digital sensors are not that angle dependent before the pixels are less then 2 microns (less then 1,5 for BSI).
06-21-2016, 08:18 PM   #78
Site Supporter
stevebrot's Avatar

Join Date: Mar 2007
Location: Vancouver (USA)
Photos: Gallery | Albums
Posts: 27,415
QuoteOriginally posted by Ratcheteer Quote
dont get your hopes up a lot of old and secondhand have been thru alot of abuse and neglect that any advantages they had has been replaced with scratches mold and fogging...
Well, I must be extraordinarily fortunate. I have dozens of vintage lenses and a few that are bona fide antiques. None have scratched glass and none have mold or fogging.

QuoteOriginally posted by Simen1 Quote
Film are quite blank and reflective too. With decent mircolenses digital sensors are not that angle dependent before the pixels are less then 2 microns (less then 1,5 for BSI).
Both film and digital sensors are affected by light fall-off due to angle and only part has to do with reflectance. The light loss is usually referred to as cos 4 theta. Here is an article describing how it works:

http://dougkerr.net/Pumpkin/articles/Cosine_Fourth_Falloff.pdf


Steve
06-28-2016, 04:46 AM   #79
Loyal Site Supporter




Join Date: Mar 2012
Location: Rochester, NY
Photos: Gallery
Posts: 2,178
I think that there is probably only one imaging system that may be able to out resolve film and maybe even the modern DSLR lenses. The funny thing about it is that it was given to the world 177 years ago. The Daguerreotype is an extremely high resolution image. It involves droplets of mercury vapor deposited onto the media at the molecular level.

Here is a link to an article from the July 2010 issue Wired magazine. There is a comment on a modern sensor needing 140,000 megapixels to match the resolution of a Daguerreotype. And the image they examined was made in 1848. I think we have a way to go yet.

http://www.wired.com/2010/07/ff_daguerrotype_panorama/


Last edited by gaweidert; 06-28-2016 at 04:58 AM.
06-28-2016, 03:00 PM   #80
Pentaxian




Join Date: Jul 2009
Location: Tromsø, Norway
Photos: Albums
Posts: 955
QuoteOriginally posted by gaweidert Quote
I think we have a way to go yet.
.. till we get 8,5 x 6,5 inch CMOS sensors.
06-29-2016, 08:23 AM   #81
Site Supporter




Join Date: Mar 2009
Location: Gladys, Virginia
Photos: Gallery
Posts: 16,216
My wife recently purchased the DFA *70-200 and we'll probably be selling the DA *200 we own. The issue is not sharpness at all, but purple fringing. I don't find it difficult to fix the fringing, but when you are shooting weddings and you have lenses like the DFA 24-70 and DFA *70-200 that don't need correcting and ones like the DA *200 and FA 77 that do, it just takes extra time. Either lens is sharp enough, bokeh is a little better on the 77 and the 200, but not enough that clients will see a difference.

They say time is money (not totally sure about that), but things you'll deal with when something is a hobby become an aggravation when you are doing it for money.
07-05-2016, 09:52 PM   #82
Site Supporter
loveisageless's Avatar

Join Date: Dec 2009
Location: Oakland, California
Photos: Albums
Posts: 1,002
If you want to see how legacy lenses can perform with the K-1, go to the Pentax website and visit their photo gallery. You can sort photos by camera body and lens used. It is really a wonderful way to get a sense of the colors/contrast characteristics of the different film era lenses.
07-06-2016, 06:26 AM   #83
Loyal Site Supporter
Fat Albert's Avatar

Join Date: Jul 2013
Posts: 960
Original Poster
Some BS quoted from dpreview.com

"It's worth keeping in mind, though, that a 36MP sensor is likely to be fairly demanding on older glass, and our initial impressions of shooting with one older 50mm Pentax prime aren't wholly encouraging.

"It's also worth noting that some older K-mount lenses risk being shown-up by the 36MP sensor, especially in the Pixel Shift shooting modes, where the resolution demands placed upon them are significantly higher than would ever have been made by film.

07-06-2016, 06:57 AM   #84
Pentaxian




Join Date: Jul 2013
Posts: 1,457
QuoteOriginally posted by Fat Albert Quote
Some BS quoted from dpreview.com

"It's worth keeping in mind, though, that a 36MP sensor is likely to be fairly demanding on older glass, and our initial impressions of shooting with one older 50mm Pentax prime aren't wholly encouraging.

"It's also worth noting that some older K-mount lenses risk being shown-up by the 36MP sensor, especially in the Pixel Shift shooting modes, where the resolution demands placed upon them are significantly higher than would ever have been made by film.
I guess someone Forgot to tell mine that......lol.
Now the masses will follow ....... Based on one brief 50mm lens test..... and one Village Idiot.
Seems the only RISK here is dpreview showing themselves up and once again................ "Opening Mouth and Inserting Hoof" !

Last edited by Dlanor Sekao; 07-06-2016 at 07:24 AM.
07-06-2016, 08:54 AM   #85
Pentaxian




Join Date: Jul 2009
Location: Tromsø, Norway
Photos: Albums
Posts: 955
It sounds like Dpreview should have said "If the sensor had 10 megapixels we would be much more happy with the sharpness of old Pentax lenses"
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, bit, course, design, edge, exceptions, film, focus, full-frame, images, legacy, lens, lenses, lots, pentax, pf, price, sensor, sensors, sharpness, time
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Isn't this getting out of hand... mattt Pentax DSLR Discussion 4 03-25-2016 06:58 AM
Who designed/manufactures the 36.4 MP sensor? *Rich Pentax Full Frame 79 03-02-2016 10:43 PM
New to Pentax - Legacy glass & auto focus Senko Pentax SLR Lens Discussion 9 02-12-2016 07:15 AM
Why GoPro’s Success Isn’t Really Isn't about the Cameras interested_observer General Photography 16 07-01-2014 05:05 PM
Sensor Stack (glass in front of sensor) and legacy vs modern lenses carrrlangas Pentax SLR Lens Discussion 8 06-24-2014 11:27 AM



All times are GMT -7. The time now is 01:54 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