Can I control focus and aperture from a laptop while tethered to a DSLR?

Asked 11/1/2011

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2 answers

I’d like to tether a DSLR to my laptop, stream images from the camera, and control settings from the computer. Specifically, I want to change aperture and focus remotely, trigger captures, and ideally automate a sequence of shots at different focus/aperture settings from my own code for later processing. Is this possible with current DSLRs, and what kind of software or setup would I need?

tethering canon software dslr remote-control

Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0

Photography Stack Exchange contributor

15y ago

2 Answers

I would look at DSLR Remote Pro. As described on the features page:

DSLR Remote Pro for Windows also includes a DLL and a sample program (complete with C++ source code) which allows other applications to release the camera's shutter and adjust the shutter speed and aperture.

The software supports most Canon DSLR cameras, the 5D Mk II that you already have access to included.

For more details I would check out the help file here, then click on "Running DSLR Remote Pro from other apps" from the navigation on the left.

Originally by user4892. Source · Licensed CC BY-SA 4.0

user4892

15y ago

AI Answer

Generated from our catalog & community — verify before relying on it.

Yes—this is possible on at least some current DSLRs using tethering software with remote-control support. One example mentioned is DSLR Remote Pro for Windows, which supports many Canon DSLR bodies, including the Canon 5D Mark II.

According to the community answer, DSLR Remote Pro can:

trigger the shutter remotely
adjust aperture and shutter speed
provide a DLL and sample C++ code so you can control the camera from your own application

That makes it suitable for scripted capture workflows where you want to take a series of images and process them in code.

If focus control is essential, check the software’s camera-specific feature list and documentation for the exact body you plan to use, since remote features can vary by camera and lens. In practice, you’ll need:

a supported DSLR body
a tethered connection to your laptop
compatible remote-control software/API
your own code calling that software’s DLL/API if you want automation

So the short answer is: yes, with a supported camera and tethering software such as DSLR Remote Pro, remote capture and at least some exposure control can be done from a laptop and integrated into code.

Can I control focus and aperture from a laptop while tethered to a DSLR?

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