Thank you!
After several lens changes and having a lens mounted on the camera for the last several days I am happy that it has loosened up a bit like a pair of leather boots?
I have not been able to reproduce that grinding I had with the zeiss 15.
I heard from a uhh member that if needed I can readjust hardstop on zeiss.
I am stoked to say I am keeping the camera it feels good to me now it was just kind of a rough start.
Never really experienced these issues before, but I might have been looking to closely for issues, it was quite an expensive camera.
But am am excited as ever.
Sorry for taking you down this pathway, but I have definitely learned something.

Well, first of all, get the name right. It's a Canon EOS Rebel T7i (N. American market... it's a EOS 800D in Europe and elsewhere worldwide and a Kiss something or another in Japan.)

Decent little camera. 24MP APS-C sensor (same as T6i, T6s, 77D, 80D). It uses the essentially the same 45-point AF system that was introduced on the 80D. I'm pretty sure it also now has Dual Pixel Auto Focus in Live View (a big improvement over contrast detection AF used in earlier models). And it's got an articulated Touch Screen LCD monitor.

The EOS 77D is a small step up.... mostly the same, but with some additional controls and displays. 77D is really still a "Rebel" series, in spite of Canon dropping the Rebel name from it (it supersedes the Rebel T6s).

Both cameras have the same frame rate (6 fps), same buffer, same 1/4000 top shutter speed and 1/200 flash sync speed. They both probably have 75,000 shutter actuation durability rating (I have not seen Canon ratings for either, but this is typical of this tier of camera). Both also use a "penta-mirror" to reduce weight and cost. As a result, their 95% coverage/.82X viewfinder images aren't quite as bright or large as 80D or 7D Mark II, both of which are 100% and use true "pentaprisms" (80D's is .95X and 7DII's is 1.0X magnification). Also in comparison, the 80D is probably rated for 100,000 actuations and Canon rates the 7D Mark II to do 200,000 "clicks". Both 80D and 7DII have 1/8000 top shutter speed and 1/250 flash sync. 80D can shoot continuously at 7 frames per second and 7DII at 10 frames per second.

Adopting the AF system that was first introduced on the 80D is a very significant upgrade for T7i/77D. As a result, they're the first Rebel series models to have -3EV low light focusing, as well as be "f/8 capable". The latter allows more lens/teleconverter combos to be used. These features were first seen in Canon APS-C models in the 7DII in 2014 and then in the 80D in 2016. Previously, only some full frame and pro-oriented 1D-series models offered this level of performance.

These Rebel series models use a smaller battery (LP-E17 or similar) that's good for roughly half as many shots per charge as the 80D/7DII which use larger LP-E6N batteries. They also aren't as well sealed for dust/weather resistance as the higher models. They use SD/SDHC memory cards (same as 80D.... 7DII has dual card slots: one SD and one Compact Flash). Both these Rebel models have built-in flash (wimpy), WiFi and GPS (which drain the batteries faster).

The Canon Rebel series models have a lot of built in automation and support for users new to or not too familiar with DSLRs. There's less of this "super automation" on 80D and almost none of it on 7DII. But the Rebel models also can be used fairly manually, with the photographer making more decisions and exerting more control. However, Rebel series aren't as convenient for more advanced users, there's less direct access to frequent camera controls, than there is with the "higher" models. For example, to set aperture and shutter manually on a Rebel uses the same dial and you have to press another button first to toggle between them. The 80D, 7DII have direct access to both these controls. Also, setting Exposure Compensation on a Rebel model requires you first press a button, then spin a dial or press other buttons that serve several functions. Both 80D and 7DII have dedicated, direct access controls for E.C., too.

T7i and 77D "in kit" with a lens can be a good value. The EF-S 18-55mm IS STM is usually the less expensive option and the EF-S 18-135mm IS STM an optional upgrade at a bit higher cost. Sometimes there are two-lens kits offered, usually the 18-55mm plus the EF-S 55-250mm IS STM. All these are decent lenses in most respects. Try to avoid any kits that have cheaper non-STM lenses (slower, noisier focusing "micro motor" lenses... not marked STM or USM). The EF-S 18-135mm IS USM is even better (2X to 4X faster focusing than the STM version). But it's rarely sold in kit with these cameras... only with 80D or 7DII. It also costs more (maybe $400 in kit, $600 if bought separately).

Sometimes you'll find a two-lens kit that includes Canon EF 75-300mm "III" (non-IS, non-USM). Avoid that lens. It's Canon's cheapest tele-zoom, hadn't got all that great image quality, lacks stabilization and has slower micro motor focus drive. For only about $100 more, the EF-S 55-250mm IS STM is a MUCH better lens in all respects that's often sold in kit with these cameras. Not offered in kits and therefore more expensive, any of the Canon EF 70-300mm IS USM are better too... or any of the premium, L-series EF 70-200mm USM lenses are even better yet (especially the IS versions).

Have fun shopping!

I ordered a D810 refurbished body from the Nikon Factory Store, but was having trouble with the links with the final purchase, so I called them directly. A rep said he would put me on hold to find out what the problem might be. After about 5 minutes, he said the offer was sold out and they had not had a chance to correct the site, so I voiced my disappointment in having to spend nearly 45 minutes trying to order it in the first place. Curious, I checked the site again and found the D810 back on the site with a different price. Within a few minutes of checking the 2nd time, I received an email stating that my purchase was going through showing my credit card was charged and a tracking # issued. Elated, I said to myself that Nikon was doing the right thing given all the bad press they have been getting. Some 2 hours later they asked that I call them where I expected them to ask if I was satisfied. Instead, they tell me that they will not honor the price and the camera will be returned on receipt. Yes...the price was extraordinary at $1099 which is why I responded to the offer, I call this BAIT AND SWITCH. Has anyone had a similar problem with Nikon? Am I right in believing that once the order was accepted and a tracking # issued that the sale is complete? Suggested recourse?