I've been down this rabbit hole and honestly, it’s a bit frustrating how much marketing hype there is around some of these lenses. I initially picked up the Panasonic Lumix S 85mm f/1.8 thinking it’d be the perfect lightweight setup for my S5II. Unfortunately, it just didn't hit the mark for me. The micro-contrast felt a bit lacking, and while it's sharp, it doesn't give you that surgical precision where you can count the fibers in a sweater. It felt like a compromise I didn't actually want to make. I also tried a couple of the heavier zooms but they’re just miserable to carry around for more than twenty minutes at the park. If you’re like me and want that clinical, ultra-sharp look without the lens weighing more than the camera, you should probably skip the entry-level stuff. The only one that really lived up to the hype for me is the Sigma 85mm f/1.4 DG DN Art for L-Mount. It’s right around $1,100 which fits your budget perfectly. It’s technically much more advanced than the cheaper primes—the way it handles chromatic aberration is miles better. Ngl, it’s still a bit of a chunk of glass, but for that specific eyelash-detail look you mentioned, nothing else really touches it in the L-mount ecosystem right now. It has a brass mount and rubber sealing which is basically a requirement if you're living in the PNW anyway. Just make sure you get the DG DN version, not the old DSLR one, or youll regret the weight immediately... it's a night and day difference.

Jumping in here because i've been shooting with the S5 system for a few years now. If you want that seeing every single eyelash look, there is really only one lens that delivers that level of clinical sharpness without totally blowing your budget. I've tried a bunch of setups over the years, and for a long time I was messin' around with different brands, but once I switched to the Sigma 85mm f/1.4 DG DN Art for L-Mount, I was floored. I remember the first time I took it out in the drizzle... pretty much standard Seattle weather... and the autofocus was just sticky. When I got home and pulled the shots up, I could literally see the reflection of the trees in my kids' eyes. Its that sharp. It has the weather sealing you need, so you wont have to baby it too much when it starts raining. It's a bit heavier than the cheap plastic lenses, but honestly, the build quality is worth the extra weight when you see the results. Tbh, the Sigma Art series is basically the gold standard for this stuff. It gives you that super creamy, blurry background that makes phone portrait mode look like a toy. It's well within your 1300 budget too, so you might even have enough left over for a nice camera bag or a extra battery. TL;DR: Get the Sigma 85mm f/1.4 DG DN Art for L-Mount. Its usually around 1100 bucks and is probably the sharpest lens for your S5II that fits your budget.

In my experience, you gotta be careful with those massive professional lenses. I've tried many setups over the years and weight is usually the biggest regret. Since you're in Seattle, definitely watch out for:

• lenses claiming weather resistance but lacking a rubber seal
• gear thats too heavy to carry for hours
• non-native stuff that might struggle with focus Native primes are basically the safest bet for those sharp family shots tho...