Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
02-16-2015, 02:27 PM   #1
Junior Member
Chris Giles's Avatar

Join Date: Jan 2015
Photos: Albums
Posts: 45
120mm Macro Focus Limit - HOW!

Hi folks, I can't seem to find a user manual for the 645 FA 120mm Macro.

I googled it, no luck. It was really just so I could understand the focus range lock feature. I've no idea how to use it.

If anyone knows, please let me know

02-16-2015, 02:40 PM   #2
Pentaxian




Join Date: Oct 2011
Location: Savannah, GA
Posts: 4,989
If it works like every other macro with a range limiter, it simply means that somewhere there is a threshold point on the focus ring where you are in "macro range" and the lock will keep you on EITHER side of that threshold depending on when you enable it. So if it is unlocked, you get the full range. If you set the focus to macro and engage the lock, it will keep you in the macro range. If you are in the normal->infinity range, it will keep you out of the macro range. Just a helper so it isn't hunting around in macro while you are trying to shoot a bird in a tree, or vice-versa when you are trying to shoot a bug 6 inches away it won't be trying to focus out at 30ft...
02-16-2015, 02:43 PM   #3
Senior Member




Join Date: Jan 2014
Location: viking country
Photos: Albums
Posts: 272
Flick the switch near close or near infinity and it will limit the focus throw from infinity to ~ 4m or from ~4m to closest focus. Mostly usable at infinity to 4m since at macro you usually focus manually

---------- Post added 02-16-15 at 10:46 PM ----------

QuoteOriginally posted by vonBaloney Quote
If it works like every other macro with a range limiter, it simply means that somewhere there is a threshold point on the focus ring where you are in "macro range" and the lock will keep you on EITHER side of that threshold depending on when you enable it. So if it is unlocked, you get the full range. If you set the focus to macro and engage the lock, it will keep you in the macro range. If you are in the normal->infinity range, it will keep you out of the macro range. Just a helper so it isn't hunting around in macro while you are trying to shoot a bird in a tree, or vice-versa when you are trying to shoot a bug 6 inches away it won't be trying to focus out at 30ft...
what he said because he was faster than me, but I am in bed typing on a tablet
02-17-2015, 06:35 AM   #4
Junior Member
Chris Giles's Avatar

Join Date: Jan 2015
Photos: Albums
Posts: 45
Original Poster
Awesome help, thanks all

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!
120mm, 120mm macro focus, 645d, 645z, camera, focus, infinity, lock, macro, macro focus limit, medium format, range, threshold
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
how to focus perfectly with manual focus lens? ghiaauto Pentax SLR Lens Discussion 17 09-30-2014 02:37 AM
Macro K-5 + Mamiya 645 120mm f/4 macro igor Post Your Photos! 4 09-13-2013 01:53 PM
Pentax 67 120mm soft focus lens karlfoto Pentax Medium Format 13 12-29-2011 05:16 PM



All times are GMT -7. The time now is 01:24 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