I also want to start making contact prints from 4x5 negatives from a pinhole camera. There's something about a small print / image and how it invites the viewer to peer into it.
I used to cut many mats too and was never happy with the not perfect sharp corners. I would go for pre-cut mats, that are machine cut if you want the absolute best. For your image, I would have cut it with same width borders all around.
I recently saw some small photos, about this size , that were rectangular in shape but in a simple gallery style square frame and white mat with a rectangular opening. They looked really eye catching. . As I recall the mat was at least 2.5 inches in width, possibly a little more. I have never looked at matcutter.com, very glad to know about it. I will check it out. I assumed that these mats were custom cut, since I have never seen any square ones with a rectangular cut out. I think square frames are very popular right now in contemporary decor.
I can not cut mats, just have to rely on pre cut. I also agree with Phillip that on the one you are showing it would look better with the matt closer to the same width all around.
I went to a gallery today where I asked for a customised mounted frame. 2cm matt and 2cm frame. I will be ready next week. It is a bit more expensive than pre made frames but at last I get exactly what I want.
I am thinking about make many prints like this one and since they are small I can put many of them in a bag and visit many galleries to show them.
Since it is traditional print I think it makes them more collectable, so I also think about make limited edition of them to make them even more collectable, together with my signature on each.
Even if there are those who think only the negative are originals. In my point of view, since each print is hand made I consider them originals too. And the scanned images copies.
Marcio, once you get your frames/mats sorted, these will be lovely.
I've always shown framed miniature prints at my real-world shows -- some as small as 2" square. At that small size, I hard a hard time making perfect cuts so, eventually, began having them cut at a local frame shop. Because of the small size, they usually cut the mats from selvage left over from other jobs, and gave me a great discount price.
Viewers seem to love tiny, framed art. It really encourages them to step closer and lean toward the images. :-) To display these tiny works, I purchase acrylic display stands that are actually designed to hold pocket watches and other small accessories. At shows, I include the stand in the purchase price.
I've used a variety of framing treatments: simple black frame/white mat for vividly colored, contemporary images, and gold frames (some simple, some ornate) with a cream frame for more traditional nature shots and fancy, spiral or curvy images. I can, sometimes, find great deals on small, sturdy, wooden frames at Ikea, which I paint and finish, then just have the mats custom-cut.
Best of luck with your project; I look forward to seeing the finished product!