Honestly, I've wasted too much money on glass that wasn't as good as expected. Option A: Sony FE 16-35mm F2.8 GM II - $2,300 (overpriced)
Option B: Sony FE 20mm F1.8 G - $900 (sharp edges)
Option C: Sigma 24mm F1.4 DG DN Art - $800 (heavy) Unfortunately, zooms often fail on that 61MP sensor, but the 20mm G is a beast with 67mm filters. Best choice for value is definitely the G lens. gl!

So basically we are looking at a split between high-end zooms and lighter primes. But honestly, as a technical point, you gotta be really careful about the mechanical reliability when you're shooting at 61MP. That sensor is so sensitive that even tiny build quality issues or internal shifts become massive problems for edge-to-edge clarity. Here are some reliability issues to keep in mind:

• Optical decentering is a common defect where one corner is soft because an internal element is slightly tilted.
• Focus shift can happen when stopping down, which is a total pain for deep landscape depth of field.
• Mount stress is real if you use heavy glass without a tripod collar, which can slightly misalign the sensor plane over time. Yeah, I've seen people buy sharp lenses that perform poorly just because the internal barrels have too much play or wiggle. If you're out in the elements doing landscape work, you need something that wont lose its alignment after a few bumps in your gear bag. Tbh, a lens that stays calibrated over years of use is better than one that is only sharp on day one.

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Finding glass that actually holds up to these sensors is a losing game. I have been through so many lenses that promised the world and just didnt deliver once you actually looked at the files. Reminds me of a trip to the coast with a buddy who was convinced a certain brand swap would fix all his edge-softness problems.

• He sold his entire kit for a different mount
• The new gear had worse decentering than his old stuff
• We spent the whole weekend shooting brick walls at the hotel
• He ended up selling everything and going back to film It was a huge waste of time. Honestly, sometimes I think these high-res sensors just exist to make us miserable about our gear choices. We spend more time worrying about the corners than the actual composition.

For your situation, I totally get the struggle of trying to feed that 61MP beast. I went through this exact same headache when I first picked up my Sony Alpha 7R V Mirrorless Camera. I thought my older glass would be fine, but honestly, that sensor is RUTHLESS and reveals every tiny flaw in ur optics. In my experience, here is what I recommend for keeping things sharp while still using standard filters: 1. The Sony FE 16-35mm f/2.8 GM II is actually a miracle lens. It was basically engineered for these high-res bodies. Unlike the V1, it holds up insanely well at the edges, and it takes 82mm screw-on filters which is exactly what ur looking for. It's expensive, but the long-term value is there cuz it replaces three primes.
2. If you want peak edge-to-edge performance for a better price, the Sony FE 20mm f/1.8 G is lowkey the best kept secret. It's tiny, uses 67mm filters, and it's sharper than many GM lenses I've tested. NGL, I use this more than my zooms when I'm hiking.
3. Be careful with the ultra-wides like the Sony FE 12-24mm f/2.8 GM. The glass is incredible, but the bulbous front element means no screw-on filters without a massive, clunky adapter kit that’ll cost u a fortune. I eventually settled on the GM II zoom for the versatility in the field, but if ur purely about that maximum resolution and saving weight, that 20mm G is the way to go. Just make sure to get high-quality filters like the B+W 82mm Master 007 Protect Filter so you dont waste that 61MP sensor’s potential! Cheers.