Best Canon portrait lens for sharp indoor shots?

For your situation, I’d go 35mm or 50mm fast prime before 85mm. In normal living rooms an 85 is honestly kinda tight unless you’re backed into a wall lol. My most-used indoor “people” lens for years was Canon EF 35mm f/2 IS USM — sharp wide open, the IS helps a ton for *your* hand shake, and 35mm lets you actually fit groups. If you want max background blur + low light, Canon EF 50mm f/1.8 STM is the cheap win, but it hunts a bit more and wide open can be a little “meh” on some copies. If you’re on RF, the sleeper is Canon RF 35mm f/1.8 IS Macro STM. So yeah… 35mm for real-life indoor stuff, 50mm if you mostly do 1–2 people. Good luck!

TL;DR: Not to disagree, but I’d skip the 50/85 debate and grab a *stabilized* 35-ish prime for indoors. Used Canon EF 35mm f/2 IS USM is usually like $300–$450 and it’s stupid sharp, focuses well, and the IS saves you when light is meh. 85mm indoors is tight (been there), and 50mm can feel awkward unless you’ve got space.

If you’re on RF and can stretch, used Canon RF 35mm f/1.8 Macro IS STM is often $350–$450 and punches way above its price. Third-party-wise, Sigma 35mm f/1.4 DG HSM Art for Canon EF used around $450–$650 is crazy sharp, just no IS. Honestly, for living-room candids, 35mm wins.

Saved for later, ty!

I'm still kinda new to all this but I’ve been shooting my family in our small apartment for about two years now. I know everyone is saying go for a 35mm because of the space, but I actually disagree a little bit. I used a 35mm for a while and found it made faces look a bit wide or distorted if I got close for a portrait? Well actually maybe I was just doing it wrong lol. If you want that really sharp, "pro" look in a normal room, here is what I’ve liked using: * Sigma 50mm f/1.4 DG HSM Art - You can find these used for around $500–$600. It’s pretty heavy but the focus is way faster and sharper than the cheap kit lens. It’s my favorite for getting those clear eye details you mentioned.
* Tamron SP 45mm f/1.8 Di VC USD - This one is basically a 50mm but just a tiny bit wider, which helps in small rooms. It has stabilization (VC) too which helps a lot when the lamps are dim and you're trying to keep the ISO down. Have you thought about how much you want to blur the background? Because a 50mm at f/1.4 or f/1.8 is going to look way more "portrait-y" than a 35mm will in a small space tho.

Honestly, I’ve spent years pixel-peeping my indoor family shots and basically realized that "sharpness" is such a trap when the light is garbage. I remember doing these real-world tests in my living room with different setups, and what I found was: * **Hit rate > Benchmarks:** IIRC, some of my "sharpest" glass on paper actually had a lower keeper rate because the AF would hunt for like a split second too long in dim lamp light. It’s superrr frustrating when you miss the perfect expression because the lens is trying to be too precise. * **The "wide open" struggle:** I think I used to try and shoot everything at the lowest f-stop possible to keep ISO down, but I’ve found that even if the lens is technically sharp at f/1.4 or f/1.8, the depth of field is so thin that if a kid leans an inch forward, their eyes are blurry anyway. * **Micro-contrast stuff:** Not sure if it's just me, but some older glass just looks "muddy" in low light even if you nail the focus. It’s like the detail just doesn't pop when you're fighting those yellow indoor lamps. Basically, I’ve learned that for family stuff, I care way more about how fast the lens talks to the camera in the dark than how it looks on a lab chart.

For your situation, I’d suggest a *fast normal prime* first, not an 85. Indoors the issue usually isn’t “sharp lens” as much as **not enough shutter speed** (people move) + AF struggling.

If you’re on full-frame:
- Canon EF 50mm f/1.4 USM (used) is kinda the classic budget move, but tbh it can be a little meh wide open (soft/fragile AF if you bang it). Still workable if you stop to f/2-ish.
- Better pick if you can stretch: Canon EF 50mm f/1.8 STM + spend the leftover on a flash (seriously).

If you’re on APS-C (Rebel/xxD):
- Canon EF-S 24mm f/2.8 STM is underrated for living-room candids.
- Or Sigma 30mm f/1.4 DC HSM Art for Canon EF if you want more blur/low light.

Why not 85? In a normal room it forces you into the wall, and framing gets awkward fast. 50-ish lets you do half-body and tight-ish head shots without yelling “everyone back up.”

Also… for crisp eyes at parties, I’d be careful relying on f/1.4 in dim lamp light. DOF gets thin and AF misses. Honestly, a small bounce flash like Canon Speedlite 430EX III-RT (used) will do more for “sharp and clean” than any lens. good luck!

👆 this

I was in your exact shoes a few years back, trying to capture family stuff with just the living room lamps on. I kept getting these soft, muddy shots because my basic zoom was struggling to find focus in the dark. I eventually bit the bullet and got a dedicated prime lens with a much wider aperture, and the difference in performance was honestly night and day. What I learned was that it wasnt even really about getting that super blurry background—it was about how much faster my camera could actually 'see' to lock focus. Once I had a lens that let in more light, my keeper rate for sharp eyes went through the roof because the autofocus stopped hunting. For my house, sticking with a wider focal length was a lifesaver. I tried a longer lens once and ended up literally backing into the hallway just to fit people in the frame. If you want those crisp shots, definitely prioritize something that focuses fast in dim light... it makes the whole experience way less frustrating.