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EF Lens on a M6ii - Aperture Change?

Started Dec 30, 2021 | Questions thread
R2D2 Forum Pro • Posts: 26,530
Re: EF Lens on a M6ii - Aperture Change? (Updated)

SergioMPS wrote:

23speaker23 wrote:

landscaper1 wrote:

O.K., I appreciate everyone's attempt to answer my question. Obviously, I didn't put enough information in my 1st post. So, let me clarify.

My intention is to possibly use a Sigma Art 20/1.4 lens on my M6ii to shoot the night sky. I'll have to accept the equivalent focal length of 32mm because I obviously can't get any further backwards unless Jeff Bezos will comp me a free ride on his next Blue Origin flight.

What I'm trying to find out is whether I can continue to use the same exposure calculation (ISO 6400, f/1.4, 5 seconds) on the M6ii as I would on a full frame body with this lens?

Short answer on this specific exposure calculation is yes.

should smaller sensor capture less light therefore need to use higher iso? just asking

(for astro shouldnt matter that much tho)

For astro it shouldn’t matter at all.  

R2

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