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Threads Tagged with internal focus
  Thread / Thread Starter Last Post Replies Views Forum
JCPenny M42 135/2.8 Tore down, reassembled but works weird. Help please.
mrbrokenlens
10-11-2023 04:42 PM
by mrbrokenlens Go to last post
0528 Vintage Cameras and Equipment
Do internal focus lenses have variable sharpness at different focus points (Multi-page thread, 2 pages total 1 2)
dkpentax
06-11-2022 12:00 PM
by zapp Go to last post
171,350 Pentax SLR Lens Discussion
Pentax Lenses Falling Apart - Stripped Internal Screws (Multi-page thread, 8 pages total 1 2 3 ... Last Page)
Unregistered User
02-09-2021 03:25 PM
by dlhawes Go to last post
11112,926 Repairs and Warranty Service
Suggestion Icon for internal focussing missing at DA560 list entry
angerdan
10-07-2019 11:08 PM
by Adam Go to last post
5904 Site Suggestions and Help
mystery lens: JCPenney 80-200 f/3.5 (Multi-page thread, 2 pages total 1 2)
jimr-pdx
01-13-2019 07:32 AM
by VILLAINofOZ Go to last post
1512,418 Pentax SLR Lens Discussion
FA*24 Internal Focusing Wabble
chesebert
05-11-2018 11:11 AM
by angerdan Go to last post
1767 Pentax SLR Lens Discussion
SMC Pentax-FA 100mm F2.8 Macro stiff focus ring and slightly dirty internal element?
Nayu
11-06-2016 09:26 AM
by Nayu Go to last post
61,622 Pentax SLR Lens Discussion
Internal focusing mechanism broken
tezreaux
07-06-2015 03:45 PM
by pishta Go to last post
51,016 Troubleshooting and Beginner Help
K-30: Any idea why an internal motor is whirring constantly at startup?
bjelde
08-27-2014 08:40 PM
by PPPPPP42 Go to last post
121,552 Troubleshooting and Beginner Help
Macro lenses with internal focus? (Multi-page thread, 2 pages total 1 2)
6BQ5
05-27-2014 05:06 PM
by monochrome Go to last post
273,151 Pentax SLR Lens Discussion
Lens Breathing (Multi-page thread, 2 pages total 1 2)
BretW
01-09-2014 10:24 PM
by BretW Go to last post
273,480 Pentax SLR Lens Discussion
Canon EF 200-400mm f/4L IS USM Lens with Internal 1.4x Extender
jogiba
05-21-2013 03:43 PM
by RonHendriks1966 Go to last post
71,735 Canon, Nikon, Sony, and Other Camera Brands
Does internal focusing cause brightness issues?
rmtschanz
07-03-2009 09:31 PM
by deejjjaaaa Go to last post
32,414 Pentax SLR Lens Discussion
Shake Reduction with internal focus lenses
pa79
03-31-2009 04:13 PM
by Arpe Go to last post
142,973 Pentax DSLR Discussion

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