Help for angle of view conversion

alcelc wrote:

khunpapa wrote:

...

Second, FL numberical value is the represent of thr Angle of View (AoV)number, which is very, very easy to understand too. (Trust me, i'm not the engineer!).

...First, Pana is known to have one sensor in the body but varied light receiving area and format!

Did you mean the improvement on sensor design? e.g. modification of the micro lenses allowing newer generation of sensor can have larger light receiving surface? If not, please kindly enlighten me what it actually is.

The Pana multi-aspect's feature requires (a bit) larger sensor ( (and larger image circle from lens)

Second, the 4/3 system does not enforce the area size, just the sensor format! Thus using Pana lens on Oly body may give you a bit narrower AoV than using the same lens on Pana body.

Never aware of this? A quick research on various current models from Pany and Oly:

• EM1-II, sensor size 17.4mm x 13mm, total 22Mp and 20Mp be effective.
• GH5, Pen-F and G9, 17.3mm x 13mm, total 22Mp and 20Mp be effective.
• EM5-II, G85 and EPL-9, 17.3mm x 13mm, total 17Mp and 16Mp be effective.

Since both Oly and Pany use the same M43 lens mount standard (the size, the flange distance and contact points etc are exactly the same), and as the image is used to cover the Fourth Third format sensor of the same size 17.3/17.4 x 13, how can a lens produce different AoV on Oly and Pany body?Is there any evidence to substantiate this?

My statement is hard to believe 😄.

So I suggest you try shooting with Pana 25/1.4, pana 25/1.7 and oly 25/1.8 on both Pana and Oly bodies, same subject & same distant, to conclude the evidence by your own eyes.