but do other hobbies/hobbyists share a similar passion?
Absolutely.
As it happens, photography is my second love, born out of a desire to record my experiences in my first love: fly fishing and fly tying.
In many ways, it amazes me how similar these two are, from the artistic focus on method and technique, the nods to tradition and the "greats" who have gone before...to the various types of enthusiast, from the beginner looking to learn, to the gearhead, to the curmudgeon, to the fad follower...
Gear is every bit as divisive a topic as well, and even extends to radically different approaches analogous to various formats (MF compared to 35mm might compare well to one guy using a 12wt with 8" flies to pursue tarpon in the ocean compared to another guy using a 2wt to go after brook trout in a mountain stream, most of which are smaller than the first guy's flies).
Even the gear is analogous, with the community anxiously anticipating the next new thing, some guys preferring highly technical, space-age, cutting edge stuff, and others eschewing all that and paying exorbitant prices for antique bamboo rods from the 30s. Still others represent the holgas and dianas of the photo world, preferring the most basic, old everyman fiberglass rods of the 70s, that they remember buying from the hardware store as a kid, despite various technical disadvantages (and similar to lomo, this trend has sparked a recent revival of such "lo-fi" gear...though modern fiberglass rods tend to be extremely high quality).
Reels provide the complex mechanical beauty of many a camera, and nearly every angler is on the eternal quest for the best way to carry all of his junk on the water, whether by vest, pack, sling, etc.
You even have the ethics arguments, debates of technique ("Dry flies are the only thing a
true angler fishes..."), and in the world of fly tying, a parallel to the darkroom/post processing...with it's own microcosm of new gear, established approaches, hacked up jobs from beginners, pursuit of rare materials, etc.
Also, both
can be cheap, but in all reality tend to be horrifyingly expensive pursuits, full of GAS.
All in all, the more I got into photography, it shocked me how many parallels could be drawn between the two. In the end, I think it reflects on my own psyche more than anything...and reinforces the suspicion that I'm a glutton for punishment.