For your situation, I'd definitely look at the Yongnuo YN600EX-RT II Flash Speedlite for Canon. It supports the same 2.4GHz radio system as Canon's flagship flashes, giving you full HSS and TTL without the crazy price tag. Honestly, the recycle times are super snappy on the 90D... it’s basically a beast for indoor events!! gl!

I would suggest the Godox TT685II-C Flash for Canon. Honestly, I've used these for years and they're basically the best value for a 90D. 1. Full TTL/HSS: It handles the metering perfectly, which is key for events.
2. Radio System: 2.4G is sooo much more reliable than optical. Be careful with the battery door, but it's well under budget, so make sure to grab Panasonic Eneloop Pro Rechargeable Batteries too. Cheers!!

Honestly, if youre looking for the best bang for your buck under $200, you gotta look at the used market for a Canon Speedlite 580EX II. Even though its an older flagship, the build quality is legendary and it fully supports E-TTL II on the 90D perfectly. From a technical perspective, its basically a DIY enthusiasts dream because you can actually find replacement flash tubes and components online to service it yourself if it ever fails. Most modern budget units are basically disposable if the capacitor or tube goes, but these older pro units are built to be opened up. To fix that flat look you mentioned without spending a fortune on professional modifiers, just use a DIY bounce card or a simple white foam sheet. Here are a couple quick technical tips for the 90D setup:

• Point the flash head at a 75 degree angle toward a neutral ceiling to increase the effective light source size.
• Watch your recycle times; the 580EX II has a GN of 58m, so if youre bouncing, you might be hitting full power and need a second to recovery. Idk why more people dont go the used pro route. It gives you way more overhead for bouncing light than the smaller mid-range units, and the weather sealing on the foot is a nice bonus for outdoor stuff.

Regarding what #6 said about "Can confirm this works. Did the same thing..."

• I wish I could be that decisive lol. Honestly, I have the exact same issue with my 90D and I have been dealing with it for months. I have used this camera for a long time and I still haven't found a flash setup that feels right for the price. Even after seeing everyone here mention the Godox units and those older used Canon flagships, I am still just as stuck as you are... it is honestly so frustrating when you just want reliable TTL for events without spending a fortune. I have been digging through reviews forever and I still dont have an answer that works for me tho.

I spent forever digging through forums before I finally bit the bullet on a flash for my 90D. I’m always a bit paranoid about third-party gear potentially shorting out the camera’s hot shoe, so I did a ton of market research. Tbh, the whole 'budget' vs 'pro' gap is closing, but there are still trade-offs in reliability that worried me. Here is what I found after looking at some of the less-talked-about options from a market perspective: * Godox V860III-C: This is basically the big brother to the ones mentioned already. The major pro is the lithium-ion battery—you don't have to carry around 12 AAs. But, I was cautious because if that proprietary battery dies mid-event, ur kind of stuck unless you bought an expensive spare. * Nissin i60A for Canon: I looked into this because it’s a Japanese brand and feels a bit more 'premium' than some budget clones. Pros: super small footprint for the power it puts out. Cons: the dial system is a bit old school and might take some getting used to. I still feel a bit uncertain about the long-term durability of the cheaper electronics, but yeah, the market is definitely leaning towards the Godox ecosystem for a reason. Just something to think about!

Hey! I totally get where youre coming from with the 90D. I actually upgraded to one last year and had the exact same issue... that pop-up flash is basically just for emergencies lol. It makes everyone look like ghosts. For your $200 budget, here is how I see the options: * **The Native Route:** Canon Speedlite 430EX III-RT. This is a solid, reliable choice that works perfectly with Canon's E-TTL II metering. It's very compact too. The downside? It's usually around $250-300 new, so it might blow ur budget unless u find a used one in good condition. * **The Practical Winner:** Godox V860III-C Speedlight for Canon. This is what I use and honestly, I have no complaints. It has full TTL and HSS support. The biggest pro is the rechargeable Li-ion battery—I can usually shoot a whole wedding or party on one charge without swapping anything. It's right at that $199-200 mark. * **The Value Choice:** Godox TT685II-C Flash for Canon. If u wanna save some serious cash for a new lens, this is basically the same flash as the V860 but it uses 4 AA batteries instead. It’s usually around $130, which is lowkey a steal. I really think the Godox V860III-C Speedlight for Canon is the best bet for a 90D user. The HSS works great for those outdoor shots when u need to kill the shadows, and it feels really well built. Plus, if u ever want to do off-camera flash, the Godox ecosystem is much cheaper to expand later on. I mean, I was nervous about going third-party too, but it actually works sooo well. gl! 👍

Can confirm this works. Did the same thing on mine and its been solid ever since.