Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-27-2011, 04:25 PM   #16
Pentaxian
Class A's Avatar

Join Date: Aug 2008
Location: Wellington, New Zealand
Posts: 9,193
QuoteOriginally posted by Asahiflex Quote
I have updated the first post with two pictures taken in an outdoor setting (with difficult/busy background).
Thanks.

The focus point for the DA* 55 is a bit more further back (too much, the eyes aren't in perfect focus anymore).

The Tak shows considerably more blur (look at the size of the blur circles). Probably just a combination of the different focus point and the wider than equivalent aperture.

The Tak shows a green tinge that I see with many older Pentax lenses. Not very pleasant to my eyes. Have you tried to achieve the same WB for these two images as well?


Last edited by Class A; 02-27-2011 at 04:31 PM.
02-27-2011, 05:01 PM   #17
Pentaxian
twitch's Avatar

Join Date: Nov 2009
Posts: 4,571
Thanks for posting these great examples.

What stands out to me is that the images are a lot more alike than they are different, to a surprising extent. I really expected more difference. Maybe if a canon 85mm lens was used on the 5D we'd see more significant differences in the rendering ?

Last edited by twitch; 02-27-2011 at 07:23 PM.
02-27-2011, 05:33 PM   #18
Site Supporter




Join Date: Mar 2009
Location: Gladys, Virginia
Photos: Gallery
Posts: 16,213
QuoteOriginally posted by twitch Quote
Thanks for posting these great examples.

What stands out to me is that the images a lot more alike than they are different, to a surprising extent. I really expected more difference. Maybe if a canon 85mm lens was used on the 5D we'd see more significant differences in the rendering ?
I doubt you would see a lot of difference. The biggest differences would be in things like white balance and colors, which you would want to fix to be the same prior to posting a comparison.
02-27-2011, 07:12 PM   #19
Senior Member




Join Date: Jan 2011
Location: Melbourne
Posts: 145
See, for me the issue is the extra 5-700 grams you'd be carrying with the C*anon/Tak combo.

Probably not much in the hand in a given instant, but if you have to carry it around all day? No way.

Best camera = the one you have with you. The size/weight of combos like that are what brought me over to Pentax. I *was* shooting with a 5DII and 100mm f2 Zuiko. Now *that* lens is AMAZING, which is similar weight to that C*non + Tak combo (but even BETTER image quality, if you can believe that).

But I'm reckoning a DA70 or FA77 will get me in the ballpark at half the weight.

02-28-2011, 02:54 AM   #20
Veteran Member
Asahiflex's Avatar

Join Date: Jan 2008
Location: Netherlands
Photos: Gallery
Posts: 2,754
Original Poster
Thanks for the nice comments! To be fair this was not a scientific excercise, but it was fun nonetheless because I wanted to see with my own eyes how one could get *almost* the same result with different tools and a different sensor size.

I manually whitebalanced the two shots (using the white shirt as a basis), but I'm not sure how the different camera's color responses are responsible (in conjunction with the different lenses' characteristics). I'm sure that with a little tweaking I could get almost the same output from both cameras.

I will probably take more comparison shots in the coming weeks, of different subjects. Just for fun of course, I don't want to "prove" anything. Any outcome is perfectly OK with me.
02-28-2011, 04:33 AM   #21
Pentaxian
Class A's Avatar

Join Date: Aug 2008
Location: Wellington, New Zealand
Posts: 9,193
QuoteOriginally posted by Asahiflex Quote
I will probably take more comparison shots in the coming weeks, of different subjects. Just for fun of course, I don't want to "prove" anything. Any outcome is perfectly OK with me.
Good attitude. Looking forward to more shots.
02-28-2011, 08:41 AM   #22
Veteran Member
farfisa's Avatar

Join Date: Nov 2008
Location: Toronto, Canada
Photos: Gallery
Posts: 1,274
I think he looks slightly happier in the DA*55 shots.

The difference is there in both sets.

Seriously though, thanks for the comparison!

I'd like to see a couple shots stopped down a bit, where the bokeh from both lenses should smooth out and get a little more interesting (to me, anyway--after all, the Tak has how many blades?)
02-28-2011, 08:50 AM   #23
Veteran Member
Asahiflex's Avatar

Join Date: Jan 2008
Location: Netherlands
Photos: Gallery
Posts: 2,754
Original Poster
QuoteOriginally posted by farfisa Quote
I think he looks slightly happier in the DA*55 shots.
Seriously though, thanks for the comparison!


QuoteQuote:
I'd like to see a couple shots stopped down a bit, where the bokeh from both lenses should smooth out and get a little more interesting (to me, anyway--after all, the Tak has how many blades?)
They're hard to count, but yes the Tak has a round aperture at any f/stop. However, the DA* 55 has rounded blades too.

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!
f/1.9, k-mount, lens, light, pentax lens, sdm, slr lens, takumar, test, transmission
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
Pentax Screwdrive AF vs SDM AF compared! (on DA* 50-135mm) Adam Pentax SLR Lens Discussion 19 06-06-2010 01:17 PM
Takumar 55/1.8: SMC and AUTO compared Nesster Pentax SLR Lens Discussion 1 01-13-2010 09:23 PM
Takumar 300/4 vs K400/5.6 anybody compared? axl Pentax SLR Lens Discussion 2 06-04-2009 06:06 AM
have you ever compared the Takumar 85mm 1,9 with the SMC Takumar 1,8??? 1,8 & 1,4? beegee Pentax SLR Lens Discussion 5 02-14-2009 07:31 PM
New SDM rear TC, SDM only or SDM + screw drive? morfic Pentax SLR Lens Discussion 1 10-01-2008 08:23 AM



All times are GMT -7. The time now is 05:35 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