Except that he has a Canon camera and lenses to fit it.... which will NOT fit or work on a Nikon camera!
Bad advice.
martykovacs wrote:
...How safe is buying used on ebay. I promise not to hold you to anything. I've never bought anything on ebay....
I've bought and sold on eBay for around 20 years.... several thousand transactions. Generally it's "safe".
However, I NEVER buy my day-to-day, "work" cameras off eBay. I buy that new, used from a reputable retailer or refurbished... I have bought a few things used from individuals locally, when I could first check out the item in person, before handing over any money. I buy and sell mostly vintage collectible camera gear on the auction website. Not the stuff I shoot with regularly... Definitely not most of photo gear I make money with! The problem is not that sellers on eBay aren't generally honest... It's that they usually aren't all that knowledgeable. Stuff is often described incorrectly, so it's on you to know exactly what you're looking at and then take the risk that it's working properly, since the seller probably doesn't know how and/or has no means of testing it for correct function.
One exception I made was buying a couple used tripods off eBay. However, I already had a good, regular user tripod.... The two I bought through the auction site were additional and served somewhat specialized purposes. They also were both items that I was quite familiar with, so I knew a lot about them and wasn't dependent upon what the seller was able to tell me. Besides, a tripod is a tripod... pretty basic, simple and good ones are durable. It's not like a DSLR... a highly complex device full of delicate electronics... Or a lens with even more electronics, plus optics. Those I'm not inclined to buy sight unseen or without full right of return and/or at least some warranty until I can confirm everything is working as it should.
martykovacs wrote:
...Also, I was looking at selling my stuff & going with Nikon, as that seems to be the way to go, albeit $$$$.
Who told you to sell your stuff, buy Nikon gear and start the learning process all over? (Hint: If you click "Quote Reply" instead of just "Reply", it would be helpful.)
That's a terrible idea! Not that Canon is better than Nikon. But Nikon also isn't better than Canon... or Sony... or Olympus... or Fuji... or, well you get the idea.
They ALL make good and highly capable gear. There are some differences when you look into the details of the various systems. Just for example, Canon and Nikon offer Tilt-Shift/Perspective Control lenses... which can be quite useful for architectural photography. Canon offers five "TS-E" lenses (17mm, 24mm, 50mm, 90mm and 135mm). Nikon offers four "PC" lenses (19mm, 24mm, 45mm and 85mm). These are expensive, big, heavy, manual focus only and require some fairly advanced knowledge to use them properly. The Nikkor lenses are a little to a lot more expensive than the Canon lenses... but they do the same thing. The only other tilt-shift lenses for use on DSLRs (or mirrorless) that I'm aware of right now are being made by Schneider, to fit Canon, Nikon and Sony. Those are extremely expensive... even more than the Nikkors. All good lenses, but they do the same thing and you'll have a heck of a time telling apart the resulting images!
NOT that I am suggesting you run out and buy some Tilt Shift lenses. Use what you've got now and only consider adding something if and when your current gear simply cannot handle the job. There are other ways to correct perspective, for example. Many post-processing software programs provide means of doing so, to some extent. Learn that first... then later you might find a reason to also use a lens too, in order to do even more.
You also don't need a full frame camera. Learn to do panoramas... assembling two or more shots into a single finished image. Doing that well, you can match or exceed the capabilities of any currently available full frame camera with your 24MP crop sensor T7i. It's just a little more work.
If your main concern is architectural photography, then other things will be more useful. Learn to use multiple shots to handle the different lighting indoors and outdoors, for interior shots where there are windows. Learn to use custom white balance, to get color-correct images under virtually any type of artificial lighting. You might find some sort of supplemental lighting helpful, but try to keep it simple... at least initially.
Software used for post-processing and calibrating their computer monitor are two other things that most photographers should pay more attention to... and usually don't involve a lot of expense.
Keep the camera and lenses you've got and use them while you learn. You're already some steps ahead in terms of familiarity, simply having used the T7i and some lenses for a while. Do you really want to start the learning process all over with a different brand that, in the end, basically does the same thing?