The Sony FE 35mm f/1.4 GM is basically the benchmark for sharpness on that A7R V. It resolves the 61MP sensor beautifully across the frame. Just a quick tip: you really gotta keep your shutter speeds higher than usual with that many megapixels, or you wont even notice the lens quality. The Sigma 85mm f/1.4 DG DN Art is also a decent option if you prefer that 85mm look for weddings.

just caught this thread... honestly if you are worried about the budget i am super satisfied with my Sony FE 50mm f/1.4 GM. it works well on the high res sensor and i havent had any complaints about sharpness even when cropping in tight. for a wedding in seattle you want something that you can trust to nail focus every single time. @Reply #1 - good point! that shutter speed thing is no joke on the a7r v since every little shake shows up at 61 megapixels. you should check out the technical breakdowns over at the lensrentals blog or maybe the sony alpha blog charts. they basically rank lenses by resolving power specifically for these high mp sensors. it is a helpful resource before you drop sixteen hundred bucks. it helped me feel a lot more confident in my gear choices. if you want to be smart with the cash i'd look at the Sigma 35mm f/1.4 DG DN Art instead of the sony. it is very reliable and saves you enough to pick up a Sony CEA-G80T 80GB CFexpress Type A card. honestly you're gonna need that for those massive raw files anyway. i've used that sigma for professional work and it is sharp enough that i dont feel like im missing out on anything compared to the gm glass. feels like a safer investment for a working pro imo.

@Reply #3 - good point! Reliability is honestly everything when you're shooting in a place as wet as Seattle. Im such a geek for IP ratings and checking how many internal gaskets are around the mount and the buttons... its actually kind of amazing how much tech goes into just keeping moisture out of that Sony A7R V sensor. Love it! It totally reminds me of this crazy hike I did in the Hoh Rainforest last year. I was so obsessed with the technical specs of my weather sealing that I made sure every single piece of gear was in a sealed dry bag, but then I totally forgot to pack actual food. I ended up being so focused on gear reliability that I forgot my own body needs fuel lol. I had to trade a spare battery to a random hiker for a granola bar... it was a fantastic bar tho, honestly saved my life while I was waiting for the clouds to break. Anyway lol sorry kinda went off topic there.

Saw this earlier and honestly that point about shutter speeds is the most practical advice here. That high res sensor shows every tiny bit of shake. If you're weighing the cost, just remember that the extra cash for native glass often goes toward better weather sealing. For a wedding in Seattle, you really dont want to risk gear failure in the mist. Sometimes playing it safe is worth the premium, imo.