I've been messing around with Nikon DX sensors for ages and honestly, I'm always pretty satisfied with the results you get from a fast prime in low light. The D7200 has a great autofocus system that works well even when the lights go down, so you're starting from a good spot. But before you drop your cash, I'm curious about the actual layout of this party. Is it a wide-open venue or a small house? That 1.5x crop factor turns a 35mm into a 52mm equivalent, which is great for single people or couples, but it might be a struggle for group shots if you can't step back far enough. If the Nikon 35mm feels too expensive even used, you might want to look at the Yongnuo YN35mm F2N Lens for Nikon. It's technically a full-frame lens but works totally fine on DX bodies. You can usually find them for under $100 brand new. The sharpness isn't quite as consistent as the first-party glass across the frame, but for a one-off graduation party, it's a massive budget-saver that'll definitely beat your kit lens in those dim conditions. Another technical thing to watch is your shutter speed... even at f/1.8, you'll want to keep it above 1/100 to avoid motion blur from people talking and moving. Are you planning on using any bounce flash or just relying entirely on the wide aperture? Knowing if you're doing mostly individual portraits or large group shots would really help narrow this down.

Unfortunately, I had issues with generic lenses being not as good as expected. Seriously, just buy a used Nikon AF-S DX NIKKOR 35mm f/1.8G, its your only real option.

Wait, coming back to this real quick... you definitely want to be careful when hunting for a used Nikon AF-S DX NIKKOR 35mm f/1.8G under 130 bucks. Sometimes those older copies have issues with the silent wave motor getting squeaky or just slow. I would suggest checking the rear element for dust too, since some people are really messy with how they store their gear. The reason this lens is the go-to is basically the physics of it:

• It lets in about 8 times more light than your kit lens at that focal length.
• You get that shallow depth of field which hides the messy backgrounds at a party.
• It is way sharper than a zoom when you are shooting wide open. Just make sure to keep your shutter speed up. Even at f/1.8, if people are moving around, you dont want to drop below 1/125 or you will get motion blur. I remember shooting a similar event once where I got so distracted by the catering... they had these mini crab cakes that were honestly life-changing. I ended up talking to the chef for twenty minutes about spices and totally missed the cake cutting. My sister still hasn't forgiven me for that one. But yeah, keep an eye on your focus points. If you find a clean copy, itll totally save your skin on Friday. Just double check the autofocus accuracy before you pay the person.

Good to know!

ngl i had a really rough time when i started out trying to go the super budget route. i tried some generic glass to save a few bucks and it was just... not as good as expected. the focus motor was loud and i missed so many shots at a family event. unfortunately i had issues with those cheaper third-party brands and it really soured my experience. when i finally gave in and got a used nikon prime it was night and day. if you are looking at your options right now:

• look for a used Nikon AF-S DX NIKKOR 35mm f/1.8G on a site with a return policy
• stay away from the Yongnuo 35mm f/2.0 for Nikon F if you care about speed
• check for a used Nikon AF-S NIKKOR 50mm f/1.8G but that might be too zoomed in for indoors it really bummed me out spending money twice because the first lens was such a letdown. the 35mm nikon is the safest way to go so you dont end up disappointed like i was... it just works better.