Which compact prime lens is best for the Sony a7C II?

Question

I just picked up the Sony a7C II, and I’m absolutely loving how portable it is. However, my current lenses are way too bulky, and I really want to lean into that 'compact' setup for street photography and travel. I’ve been looking at the Sony 40mm f/2.5 G because of its tiny footprint, but I'm also curious if the Sigma 35mm f/2 Contemporary is a better all-around choice despite the extra weight. I’m trying to keep the budget under $700 and want something sharp that doesn't feel unbalanced on such a small body. For those of you using the a7C II, which compact prime has become your go-to everyday lens?

Petrsn · Accepted Answer

yo, saw this earlier but just now responding! I went through this exact same headache last year with my a7C II. Honestly, it’s a tough call cuz you really want that 'small' feeling but dont wanna sacrifice quality... 1. Sony FE 40mm f/2.5 G: This was my first pick. It’s TINY. Like, literally fits in a jacket pocket. But I was actually a bit disappointed by the rendering; it felt a bit clinical and the bokeh was kinda busy in certain lighting. 2. Sigma 35mm f/2 DG DN Contemporary: I swapped to this for a month. The build is incredible (metal > plastic), but it unfortunately felt way too front-heavy. It made the small grip on the a7C II feel awkward after an hour of shooting. So basically, I went back to the Sony G glass just for the balance. It sucks that the rendering isnt as 'magical' as the Sigma, but youre wrists will thank you lmao. anyway, gl with the choice!

Harveysag · Answer

So basically the consensus is choosing between tiny Sony glass or metal Sigmas. After years of shooting, I had issues with the weight of the Sigma 35mm f/2 DG DN Contemporary—it wasn't as good as expected on my Sony a7C II which was disappointing. * Sony FE 40mm f/2.5 G: Best for travel.
* Sony FE 24mm f/2.8 G: Great for street. Unfortunately, that Sigma just isnt as 'compact' as I wanted, you know? lol

GrantGob · Answer

In my experience, ur basically choosing between Sony's tiny glass vs. the Sigma metal primes. And honestly, I've been SO happy with the official Sony ones for years. Pros: they're weightless and the balance is industry standard for compact bodies. Cons: they feel slightly less tactile than metal. Sigma has that premium build but adds weight. I'm satisfied with the Sony ones tho... TL;DR: Go with official Sony compacts, they're literally perfect for street photography.