Sigma 35mm F2 DG DN defaults to F4.0 when setting to Auto instead of F2.0.

Started 3 months ago | Discussions thread
flipp
OP flipp New Member • Posts: 4
Re: Sigma 35mm F2 DG DN defaults to F4.0 when setting to Auto instead of F2.0.

kelly15 wrote:

F/4.0 is the aperture the lens is at it’s best.

Nokiron wrote:

My Sigma 105 DG DN Macro does the same. It goes to F4.

Martin_99 wrote:

kelly15 wrote:

My 85 DN too.

F/4.0 usually is the best aperture of modern design lenses.

f5.6 zooms can disagree 😁😁

But yeah, most primes are best at f4-f5.6. Modern lenses from few years ago are mostly very good also wide open, means like around 80% of sharpness in comparison to best aperture. So stopping down is not so necessary as in the past.

Ok, it makes sense now. Thank you everybody.

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