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Irix 15mm f/2.4 with EF-RF adaptor

Started 10 months ago | Questions thread
Andy01 Veteran Member • Posts: 5,188
Re: Irix 15mm f/2.4 with EF-RF adaptor
2

vtzerpos wrote:

I sent my question to Irix and they replied, saying this: “For mirrorless cameras, you need to enable "focus peaking" in the settings. This should solve your problem.”

Do you want this focusing aid for normal daytime work, or for astro/stars ?

IMO for daytime or indoor use with a UWA lens like this the focus distance scale is perfectly adequate to achieve very good (if not perfect) focus.

For astro/stars, no focus indicator or focus peaking is going to be accurate enough to achieve sharp stars. The only way to achieve decent focus is either with a physical aid like a Batinov filter or doing what most of us do, which is to use Live View and maximum magnification to find a bright star and adjust focus on it.

Colin

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