Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-03-2011, 06:09 PM   #91
Veteran Member
rparmar's Avatar

Join Date: Jan 2008
Photos: Gallery
Posts: 8,783
I came to this from the later thread, so sorry for being so late to the party. Interesting shots that show how many good lenses we have to choose from!

The FA43 seems the sharpest to me and the 50/1.2 about as usable wide open as I remember before I sold my excellent copy. Which is to say, for me I needed to stop down a bit to get the IQ I was after, at which point the lens could not justify its extra bulk over the FA Limiteds.

Others will of course have different priorities.

02-03-2011, 06:18 PM   #92
Veteran Member
dgaies's Avatar

Join Date: Oct 2009
Location: Maryland / Washington DC
Posts: 3,917
Original Poster
QuoteOriginally posted by rparmar Quote
I came to this from the later thread, so sorry for being so late to the party. Interesting shots that show how many good lenses we have to choose from!

The FA43 seems the sharpest to me and the 50/1.2 about as usable wide open as I remember before I sold my excellent copy. Which is to say, for me I needed to stop down a bit to get the IQ I was after, at which point the lens could not justify its extra bulk over the FA Limiteds.

Others will of course have different priorities.
Better late than never

The 50/1.2 can be challenging to use at f/1.2, even in a controlled test setup like this. I retook some shots with both the 50/1.2 and 31/1.8 to try and better compare their sharpness. Here's a link. It's still a matter of personal preference whether the 50/1.2 is "sharp enough" wide open or not, but it's certainly quite usable IMO. Also, there is a bit less contrast in the 50/1.2 shots vs the 31/1.8 shots, which may also contribute to the feeling that it's not as sharp. Then again, going up against the 31/1.8 is a tough proposition for just about any lens
02-04-2011, 06:08 PM   #93
Veteran Member
rparmar's Avatar

Join Date: Jan 2008
Photos: Gallery
Posts: 8,783
I was wrong to emphasise sharpness since it was more the diminished contrast and halo effects that bothered me. However, these exact same characteristics are considered (by other shooters) a boon for their creative possibility...and I completely understand!

In any case, despite preferring the rendering of other lenses, the 50/1.2 was incredible from f/2 and would not have been sold except for financial reasons.
02-04-2011, 10:20 PM   #94
Veteran Member
dgaies's Avatar

Join Date: Oct 2009
Location: Maryland / Washington DC
Posts: 3,917
Original Poster
As a side note, I accessorized my A50/1.2 yesterday when I happen to run into an original Pentax hood in the bargain bin at a local camera store. I had been trying to find one of these for a while and probably would have paid a bit more than the $3 I ended up spending



02-05-2011, 08:16 AM   #95
Site Supporter
Clinton's Avatar

Join Date: Feb 2010
Location: Salt Lake City, UT
Photos: Gallery | Albums
Posts: 1,800
what's the model/part number on that hood?
02-05-2011, 08:20 AM   #96
Veteran Member
dgaies's Avatar

Join Date: Oct 2009
Location: Maryland / Washington DC
Posts: 3,917
Original Poster
QuoteOriginally posted by Clinton Quote
what's the model/part number on that hood?
I think the model number is PH-R52, although it's not marked anywhere on the hood itself. I just got lucky and found it in a big bin of used hoods, cases, straps, filters, etc, but there was no box nor a tag on it.
02-05-2011, 09:54 AM   #97
Veteran Member
rparmar's Avatar

Join Date: Jan 2008
Photos: Gallery
Posts: 8,783
QuoteOriginally posted by dgaies Quote
I had been trying to find one of these for a while and probably would have paid a bit more than the $3 I ended up spending
Nice one!
02-05-2011, 10:20 AM   #98
Site Supporter
gofour3's Avatar

Join Date: Oct 2008
Location: Vancouver, Canada
Posts: 5,121
QuoteOriginally posted by Clinton Quote
what's the model/part number on that hood?
No part numbers were marked on the K Series hoods, see my guide for more info:

https://www.pentaxforums.com/forums/pentax-lens-articles/84876-guide-pentax-k...ens-hoods.html

Phil.

PS I have a spare, PM me if you are interested.

05-15-2011, 01:49 AM   #99
Veteran Member
Frogfish's Avatar

Join Date: Dec 2009
Location: Shanghai
Posts: 4,490
Excellent test. Rep given.

However if we are going to compare bokeh then shouldn't all the lenses be tested at the same f-stop (say f2.8 ?) otherwise faster lenses would seem to have an obvious advantage.
05-15-2011, 05:43 AM   #100
Veteran Member
dgaies's Avatar

Join Date: Oct 2009
Location: Maryland / Washington DC
Posts: 3,917
Original Poster
QuoteOriginally posted by Frogfish Quote
Excellent test. Rep given.

However if we are going to compare bokeh then shouldn't all the lenses be tested at the same f-stop (say f2.8 ?) otherwise faster lenses would seem to have an obvious advantage.
I think that would be an interesting comparison as well (testing at the same aperture). At the time, however, the friend of mine who asked me to perform this test was most interested in maximizing the OOF area for each lens and was therefore interested in seeing everything wide open and less concerned about how they performed at a common aperture. I can look back and see if I took common aperture shots; it's likely I did at the time and just never posted them
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!
a50/1.2, da*55/1.4, fa43/1.9, fa50/1.7, k-mount, k50/1.4, oof, pentax lens, regions, shots, slr lens, test
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
K50/1.2 + FA77 or A50/1.2 + FA100/2.8 axl Pentax SLR Lens Discussion 14 02-20-2011 02:57 PM
My FA43 and FA77 has rather strange serial numbers ogl Pentax SLR Lens Discussion 10 10-09-2010 01:15 PM
Need help to identify lens cap for FA77/FA43 Ltd. HermanLee Pentax SLR Lens Discussion 6 12-11-2009 11:01 AM
For Sale - Sold: K10 + DA12-24 + DA35 + K50/1.2 + FA77 + Sigma 70-200/2.8 + AF-540 alexeyga Sold Items 13 09-03-2009 07:55 PM



All times are GMT -7. The time now is 01:30 AM. | 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