staydecent wrote:
The limiting factor is I'd like to get two bodies for under $1000. I'm currently leaning towards the Panasonic GX1 for myself, and the Canon T3i for my partner.
My main question is: Should we both invest into the same lens mount system? Moreover, would it be redundant if we had the same camera body?
Personally, I think it's a bad idea to get two different lens mounts. My Jan is always reaching into my camera bag for glass, flash units and other things. I shoot professional level Nikon gear and she loves the entry level Nikon gear, but everything pretty much interchanges. She loves it this way because she doesn't have to carry a separate camera bag out on a shoot.
For example, I may get an assignment for a posed set on Miami Beach on a several hour deal. She might come along for fun and be regularly grabbing items out of my location kit at the site, then wander around the beach area. I've even seen her bring a couple of sunbathers off the beach into the set and have the lighting guy hook her into the set lighting. LOL It was a case where they were shooting video for television advertising and I was doing some stills because my company partners with them. They sponsor one of our broadcasts.
So, I'd be considering the Canon gear just for the size of the system offered. You could also look at the Nikon D5100 lineup or the excellent Pentax K30. $1000 is a very small budget for a pair of DSLR cameras and associated lenses. Whatever you ended up with, I'd get different starting lenses. Maybe one with the kit 18-55 zoom and one with a faster prime like the Canon or Nikon 50 f/1.8. Nikon also has a very sharp and inexpensive 35 f/1.8 for $195 that could go on one camera. 35mm has the same field of view on these digital APS-C sized cameras as 50mm did in the older film days you remember. Sony and Pentax also have excellent inexpensive 35mm kit type lenses available too. Unfortunately Canon has not done it yet. They have a somewhat inexpensive 40mm though that is superb.
Panasonic has a somewhat more limited lens availability in very inexpensive glass like this. What is really nice and surprising is that all this newer inexpensive glass by Nikon, Pentax and Sony are exceptionally high in optical quality, rivalling the more expensive glass in that way. Nikon so far has that 35 f/1.8, a 40 f/2.8 macro lens, the 50 f/1.8G all between $195 and $245, then slightly more for the 85 f/1.8 portrait lens. Note that the 40mm and 85mm are considered and have been tested as two of the sharpest lenses by anyone at any price. Sony and Pentax have a couple also to go with those 35mm in that low low price range. They are also as good optically as their more expensive models. It's really a good time for entry level cameras with an array of lenses matched in price and extreme high optical quality. None of the above lenses are slouches in any way except they are mostly plastic builds.
I would also suggest looking at the Sony a58. The only thing I don't care for is the plastic lens mount on that camera. It's a first by anyone and I'm probably wrong to not care for it, but I don't. Otherwise it also is a great choice. Sony tends to load their entry level models up with lots of newbie whizbang features which I don't at all care for, but you might like to play with like auto HDR and Panorama modes to name a couple. I think they get old inside of a week or so, but some new people, in this Instagram generation, love the idea. I prefer an optical viewfinder, but some prefer Sony's OLED electronic viewfinder and swear by it.
Remember, many here are armchair photographers with zero images on display anywhere, yet they feel the need and qualification to suggest what they purchased for you. Brands can be like a religion to some folks and have nothing to do with usability. If someone claims that Brand A is the best, go look at their gallery and see what you think about Brand A. If they have nothing in a gallery then go to their linked website. If there's nothing at all, consider what that might say.
Anyway, that's my rambling opinion.Take care and have a wonderful summer.
and please excuse typos.