Forgot Password
Pentax Camera Forums Home

Show Printable Version Search this Thread
01-02-2007, 10:06 AM   #1
Veteran Member

Join Date: Dec 2006
Location: UK
Posts: 643
one for clarenceclose..

an old sigma 200mm F3.5 macro prime manual lens.. ebay special.. 35..

just an example of when auto foucus will not work under any circumstances.. another one of my lens test pics..

the problem being of course is that manual focus with such a lens misses more often than it hits.. its not easy to get spot on..

handheld full frame jpeg sr on..


ps.. the lamp post was my intension

01-02-2007, 12:13 PM   #2
Veteran Member
clarenceclose's Avatar

Join Date: Nov 2006
Location: Pocatello, Idaho
Photos: Gallery
Posts: 1,518
QuoteOriginally posted by trog100 Quote

ps.. the lamp post was my intension
Thank you. I recognize the tangle of vegetation can easily deceive not only the camera AF but the eye in MF. I purposely selected center focus only to I could 'hit the bird' with a good shot. Less of a tangle in the tree than in the lilac bushes. Still the bird is too small for an accurate AF as the actual point of AF may not be where the center of the dot dictates due to manufacturing irregularities so I may have gotten the branch next to the bird. Also I am dealing with older eyes so my ability to sharply MF at that distance is much less than perfect. Have a lot to work on before I get a finely detailed capture of one of the sparrows. When I get something worthy I will post with pride.

01-02-2007, 12:37 PM   #3
Veteran Member

Join Date: Dec 2006
Location: UK
Posts: 643
Original Poster
the viewfinders on our cameras were not designed for real manual focus.. every old manual lens i have tested i have had to take several pics to make sure it had one spot on for focus..

my eyes are pretty old but my sons younger ones dont do much better.. provided u give it half a chance and aint useing silly fast (super shallow dof) glass for the sake of it the camera does a far better job than we do..

spot is more accurate but the multipoint thing is faster for an overall scene.. it always gets its man but not always the right one.. he he

pic a nice day for your worthy shots.. best of luck..


  • 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!
camera, dslr, lens, photography
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Similar Threads
Thread Thread Starter Forum Replies Last Post
From my studio, for clarenceclose little laker Post Your Photos! 0 04-17-2007 01:05 PM
Horse pic's for clarenceclose little laker Post Your Photos! 9 04-13-2007 06:18 PM
One for clarenceclose and Dr Windmill... wjwncpro Post Your Photos! 3 01-25-2007 07:37 PM
another one for clarenceclose Dr Windmill Post Your Photos! 3 12-03-2006 07:55 AM
for clarenceclose foxglove Post Your Photos! 1 12-02-2006 01:43 PM

All times are GMT -7. The time now is 10:01 AM. | See also:, 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?
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]