QUOTE(IwanAGP @ Feb 12 2019, 12:29 AM)
IMO If overall lightweight is your concern guess M43 still the way to go or maybe go to APSC but not FF. Although the body weights similarly, the lenses weight very much different.
An example:-
https://www.bhphotovideo.com/c/product/1304..._g_x_vario.html
vs
https://www.sony.com.sg/electronics/camera-...details_default
For 24-70mm (35mm equivalent) F2.8 (not considering the difference in aperture for different sensor size yet).
Panasonic: 67.6 x 73.8 mm / 305g
Sony: 87.6 x 136 mm / 886g
The most compact one from Sony own lens line up should be the 28mm F2 d. It weights 200g but is around 7 cm in length. Won't call that a pancake
Meanwhile, Panasonic 14mm F2.5 pancake lens is only 55g. Cannot compare at all

https://www.sony.com.sg/electronics/camera-...details_default
Oh yeah... Don't forget to let your dad know he's downgrading from APSC to M43 if it really happens. Later he wonder why the performance different

I was thinking that if I were to use the a7ii, I would be able to have the option of both going small and large when the situation calls for it. Given equivalence, should I need to go compact, I noticed that Sony has quite a few compact primes which weighs less than 200g like Sony Carl Zeiss Sonnar T* FE 35mm F2.8 ZA and Sony FE 50mm F1.8. I am ok with slower lenses with equivalence accounted for, so for example for the standard zoom, I am thinking instead of going with Sony 24-70 f2.8, I can live with f4 instead (or even f5.6!) since that would be closer to f2.8 on mFT. What matters more would be the weight, size and price since the reason he is trading in the D7100 is that he seldom shoots nowadays due to the weight.An example:-
https://www.bhphotovideo.com/c/product/1304..._g_x_vario.html
vs
https://www.sony.com.sg/electronics/camera-...details_default
For 24-70mm (35mm equivalent) F2.8 (not considering the difference in aperture for different sensor size yet).
Panasonic: 67.6 x 73.8 mm / 305g
Sony: 87.6 x 136 mm / 886g
The most compact one from Sony own lens line up should be the 28mm F2 d. It weights 200g but is around 7 cm in length. Won't call that a pancake




https://www.sony.com.sg/electronics/camera-...details_default
Oh yeah... Don't forget to let your dad know he's downgrading from APSC to M43 if it really happens. Later he wonder why the performance different


Granted, the optical quality of the cheaper FF lens are not as good as the Pro line on mFT, but some things have to give I guess. Just exploring an additional option.