You might associate a canvas tent with the big top at the circus. And you are not too far off as the two are closely related and share many features despite the discrepancy in size. You see, canvas tents have not fallen out of favor despite the rise of synthetic materials like nylon, because they still offer characteristics that are considered desirable for many applications.
When weight and heft are your primary concerns, like when backpacking and hiking, then a canvas tent is not practical. It is heavy and has considerable bulk no matter how you fold it. But when your campsite is reachable by car, then you are in for a treat when you opt for a canvas tent. Once you have answered the question on how you will use it, your next concern is actually buying one.
More easily bought from military surplus outlets that from sporting goods stores, you still have a few options when looking for a canvas tent. Coleman, the camping equipment manufacturer ought to have a few models up for sale at its bigger stores or online. If you want colors other than olive drab or desert camo, then Coleman tents are your best bet.
When buying, see if it can accommodate what you intent to bring to camp – camping tables, camping chairs, and others have to fit. If not, you just wasted energy lugging around something heavy when a light pop up tent can do as good a job.
In closing, a canvas tent is also prone to compromises. You gain capacity and durability while giving up portability and your ability to go deeper when camping. As with anything that makes you choose, you have to make the decision based on your intended use for a tent. If the strengths of a canvas tent is suited to your situation, then you are in for an enjoyable outing.