01-17-2018 05:05 PM
Hi everyone, I am trying to use my EOS M3 attached to a Meade ETX125 telescope to capture stars, planets, moon etc. I have used my ETX125 before with DSLR bodies (5D Mk II and 1DS MkII) but they are very heavy. No matter how I try I cannot get the M3 shutter to release. The image is there in the viewfinder - sharp as a pin, I have set shutter speed and ISO. The aperture (not detectable by the camera) is F15. Does anyone know what else I need to do to take astro photographs?
Solved! Go to Solution.
01-17-2018 06:39 PM
If you want to use a fully manual lens, you have to go into the menu system, find the selection that says “Release shutter without a lens attached,” and enable it.
01-17-2018 05:10 PM
What modes have you tried?
01-17-2018 05:24 PM - edited 01-17-2018 05:25 PM
Just about everything really (but I do want RAW so that I can stack photos). I have certainly tried M, Tv. Av and even P modes as well as setting manual focus (which it is anyway). I have even tried exposing a shot with no lens or adaptor installed (disconnected from the telescope). I suspect that there is something in the settings or in the firmware that prevents shooting without a lens attached.
01-17-2018 06:05 PM
Are you using a T-mount adapter?
01-17-2018 05:21 PM
Did you try Manual focus mode?
01-17-2018 06:39 PM
If you want to use a fully manual lens, you have to go into the menu system, find the selection that says “Release shutter without a lens attached,” and enable it.
01-17-2018 07:00 PM
Thanks Waddizzle. The toggle 'release shutter w/o lens' can be found in C.Fn.III Others. I'm looking forward to trying this out tomorroe!
05/31/2023: New firmware updates are available.
EOS R6 Mark II - Version 1.1.2
05/18/2023: New firmware updates are available.
EOS Rebel T100 - Version 1.1.0
EOS 5D Mark IV - Version 1.4.0
EOS 6D Mark II - Version 1.2.0
PowerShot Elph 360HS - Version 1.1.0.0
PowerShot SX420 IS - Version 1.1.0.0
PowerShot 620 HS - Version 1.1.0.0
PowerShot SX720 HS - Version 1.1.0.0
PowerShot G1X Mark III - Version 1.1.0.0
PowerShot G7X Mark II - Version 1.2.0.0
PowerShot G9X Mark II - Version 1.1.0.0
04/20/2023: New firmware version 1.4.1 is available for EOS R3
03/30/2023: New firmware updates are available.
EOS 1DX Mark III- Version 1.7.1
Speedlite EL-1 - Version 1.0.2
03/30/2023: Product Advisory for EF50 F1.2 L USM
03/30/2023: Product Advisory for EOS R10
2/07/2023: New product announcements!
EOS R8 EOS R50RF-S55-210mm F5-7.1 IS STMRF24-50mm F4.5-6.3 IS STMRF15-30mm F4.5-6.3 IS STMCanon U.S.A Inc. All Rights Reserved. Reproduction in whole or part without permission is prohibited.