QUOTE(Eiraku @ Nov 22 2015, 08:14 PM)
Lol. The kit 2870 is like I said, not much worse then the 2470Z (and in reverse, the 2470 isn't much better), so it's totally up to you if you think the constant f/4 (and marginal optical improvement) is worth the considerable cost difference.
Personally I think the 1635Z is a much better choice if you want a zoom - but I'm more a wide kinda guy. Plus it's plenty expensive.
Looking at your needs though, I'd say start with the FE28. It's cheap, sharp and fast (f/2) - and perfect for indoors group family portraits, even less adequately lighted ones. Then, if you can afford it, get the FE55 as well for individual people shots and you're all set.
For optimal headshot portraits the 55 is a bit short, but considering the next best thing is either uber expensive (the Batis 85) or just a rumor (the yet to be seen Sony FE85), we'll have to make do. For head-shoulders it should be perfect though.
Unfortunately being used to the 1750 would mean you're gonna have to practice more feet-zooming and lens switching - otherwise they're both marvelous lenses and should serve you well indoors or out.
Gosh! A lot to digest. Thx for all the advices. I guess I cannot run away from the fact that if I want very good photos, I have to use primes instead of zoom lenses. I have always prefer zoom lenses when I go travelling as feet-zooming in public is not my style. More of a point-and-shoot guy....
I did more research and it looks like I will probably settle for a7ii instead of a7s. One main reason is the image stabilizers on the a7ii. I would need that as my shots are mostly hand-held. Didn't realized that most FE lenses do not come with OSS.
For lenses, the FE55 is tempting and i will probably get that. For wider lenses, haven't decided whether I should just go for the kitlens 2870 or the FE28 like what you recommended. Will see how it goes......
QUOTE(Silverfire @ Nov 22 2015, 08:51 PM)
The A7M2 is not a great camera to focus under dim light. You have to switch on the AF Illuminator to help, also switching over to Center focus will also help. Just shot a birthday party yesterday night which required me to shoot 1/100 F2 ISO3200 + flash. Took about 2 seconds to focus before being able to shoot (I was using Flexible spot Small to focus at that time), when I got home I experimented with Center focus and it was considerably faster and more accurate which takes about 1 second.
I see. Thx for the tip. Will probably go for the a7ii..... there goes my low-light expectations....
This post has been edited by kmarc: Nov 22 2015, 11:09 PM