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Data Base:
Which lenses can be focused with
APT without change the AF/MF button ?


Content:

  1. Introduction
  2. Data base of lenses
Canon EF 300 mm L f/4

Data base of lenses that APT can focus in manual mode:

1, Introduction:

When using camera lenses and remote focusing them there is a problem. My lenses have to be in AF (Auto Focus) mode to be remote focus operated. When the focus is set I have to switch the camera button to MF (Manual Focus). If I don't do that the lens will auto focus every time I shot a new photo. That is what it should do but not very useful in astrophoto. To my surprise I read at the APT forum that some lenses can be remote focus controlled when in MF mode. The APT forum thread is here

I sent a question to Ivo who is the owner of the APT forum if it couldn't be made a simple data base of these lenses to get a better overview. He thought it could be a good idea but haven't the time to do it and suggested that I collect the information in a data base of my own homepage and link to this forum. That's what I have done here in a form of a table.

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2, Data base:

This table list the auto focus lenses and how they can be operated by APT ( Astro Photography Tool) when remote controlling the focus of the lens.

Table divided in prime and zoom lenses, sorted by focal length. Note: this table is setup only to get a better overview of the information from the APT forum. Have a look at the APT forum if you need more details.

Camera used Prime Lens Remote focus
in AF mode
Remote focus
in MF mode
reports from
- Canon EF 40mm f/2.8 STM Yes Yes Ivo
Canon 40D Canon EF 40mm f/2.8 Yes Yes Chris
- Canon EF 40mm f/2.8 STM Yes Yes Jim
- Canon EF 50mm f/1.4 Yes No Graeme
Canon 70D Canon EF 50mm f/1.4 Yes No Jack
Canon 90D Canon EF 50mm f/1.4 Yes No Jack
Canon 6D,5D Canon EF 50mm f/1.8 old Yes No Lars Astrofriend
- Canon EF 50mm f/1.8 STM Yes Yes Lou
- Canon EF 50mm f/1.8 STM Yes Yes Jim
- Canon EF 85mm f/1.8 Yes Yes Ivo
- Canon EF 85mm f/1.8 USM Yes Yes Jim
Canon 6D Sigma APO 150mm f/2.8 old Yes No Lars Astrofriend
Canon 6D Canon EF 300mm f/4 L old Yes No Lars Astrofriend
- Canon EF 300mm - Yes Lou
Canon 70D Canon EF 400mm f/2.8 L IS II Yes Yes * Jack
Canon 90D Canon EF 400mm f/2.8 L IS II Yes Yes Jack
         
Camera used Zoom Lens Remote focus
in AF mode
Remote focus
in MF mode
reports from
Canon 70D Canon EFS 10-22mm f/3.5-4.5 USM Yes Yes * Jack
Canon 90D Canon EFS 10-22mm f/3.5-4.5 USM Yes Yes Jack
Canon 60D,77D Canon EFS 15-85mm f/3.5-5.6 IS Yes ** Yes Martin
Canon 70D Canon EFS 17-85mm f/4-5.6 USM Yes Yes Jack
Canon 90D Canon EFS 17-85mm f/4-5.6 USM Yes Yes Jack
- Canon EFS 18-55mm IS No Yes Ivo
- Canon EFS 18-55mm f/3.5-5.6 Yes No Lou
- Canon EFS 18-55mm f/3.5-5.6 IS II Yes No Jim
Canon 600D,1100D Canon EFS 18-135mm f/1.8 old Yes Yes Jim
Canon 40D Canon EF 24-105mm f/4 Yes Yes Chris
- Canon EF 24-105mm f/4 L IS USM Yes Yes Jim
- Canon EF 55-200mm f/4.5-5.6 L II USM Yes No Graeme
Canon 40D Canon EF 70-200mm f/4 L Yes Yes Chris
- Canon EF 70-200mm f/2.8 L USM Yes Yes Jim
- Canon EF 70-200mm f/2.8 IS USM Yes Yes Brent
Canon 70D Canon EF 70-200mm f/2.8 IS USM Yes Yes * Jack
Canon 90D Canon EF 70-200mm f/2.8 IS USM Yes Yes Jack
Canon 600D,1100D Canon EF 70-300mm f/4-5.6 IS USM Yes No Jim
Canon 60D,77D Canon EF 70-300mm f/4-5.6 Yes ** No Martin
Canon 40D Canon EF 75-300mm f/4-5.6 old Yes No Chris
- Canon EF 75-300mm f/4-5.6 III Yes No Jim

*
Connect to APT with AF selected then switch to MF.

**
Reported to not do an auto focus when remote focus operated in AF mode.

I continuously update with new lenses from APT forum, last update April 7, 2021.

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