FOV conversion chart?

tazza

tazza

Well-known member
Just picked up the Pana Lumix 0.75x wide angle adapter. I've attached it via a 53-46 adapter ring.
Putting it on the 20mm lens what would be my true FOV?
It there a chart avail?
 
thanks Joe,
i'm having a problem understanding how to use the abel chart nor can I think in terms of degrees when applied to lenses.
so my 20mm with the 0.75 wide angle adapter would give me...?
 
Well, it would turn the 20mm into a 20x.75 = 15mm. So it will give you a field of view a little bit tighter than the 14mm pancake.
 
thanks for the math Barry - I would still have to take into account that the 14mm on the GH2 is really 28mm?
I'm shooting is a small room and looking for a wide look with little distortion, the FOV on the .75 has little distortion but still not wide enough.
Anything else I looked at, that was demonstrated to me at B&H, had distortion. Any suggestions?
 
tazza said:
thanks for the math Barry - I would still have to take into account that the 14mm on the GH2 is really 28mm?
Click to expand...
14mm is 14mm. If you're asking what the relative field of view of a 14mm lens on m43 would be, as compared to a "full frame" camera, then yes, 28mm on full frame would deliver the same field of view as 14mm on m43.

I'm shooting is a small room and looking for a wide look with little distortion, the FOV on the .75 has little distortion but still not wide enough.
Anything else I looked at, that was demonstrated to me at B&H, had distortion. Any suggestions?
Click to expand...
The 7-14. It's insanely hyper-wide, and there's no barrel distortion. It gets "stretchy" in the corners if you're panning around though.
 
tazza said:
thanks Joe,
i'm having a problem understanding how to use the abel chart nor can I think in terms of degrees when applied to lenses.
so my 20mm with the 0.75 wide angle adapter would give me...?
Click to expand...
Here is a screenshot of the FOV comparator showing a 15mm lens (20mm x.75 = 15mm) on a m4/3rds sensor camera (AF100) vs a FF DSLR (5D MK2).
5538352284_2e5eed49a1_b.jpg
 
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