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Occasional Contributor
Posts: 7
Registered: ‎04-19-2020

Re: EOS R, EF-S Lens Crop Loss of Megapixels

[ Edited ]

@ That`s a fact 👍😂

Highlighted
Occasional Contributor
Posts: 7
Registered: ‎04-19-2020

Re: EOS R, EF-S Lens Crop Loss of Megapixels

[ Edited ]

Dear @

I know that aperture values have nothing to do with the type of lens mount 😂

I was referring to the fact that the circuits of teleconverters (or speedboosters) act like a middle man, so the camera couldn't identify whether the lens attached is an ef lens or ef-s lens.

 

There is no middle man in an extension tube or in a reverse mount adapters, hence the camera will identify whether the lens attached is an ef lens or ef-s lens. 😉



i'm afraid a lens like 50mm won't be as good as a wider lens like 18mm in lens reverse situation.
I'll show you some results.

this is the maximum magnification of a canon 100mm macro lens (Not Reversed 1:1 magnification)
Normal 100mm macro LR.jpg

 

 

 

 

this is 50mm f/1.8 Full frame lens reversed ( wich was your sujestion)
50 Reverse LR.jpg

 

 

 

this is 18-55mm EF-S lens reversed @18mm

18mm Reverse LR.jpg

 

 

so, imagine the result of 10-18mm EF-S lens reversed @ 10mm
🤣🤣🤣😁😅 

 

 

 

 

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