The Gaoersi 617 is a multi-format panoramic camera that was produced briefly in Hong Kong in the early 2000s. Due to its small production numbers, it is a fairly rare camera. Those who get their hands on them, tend to love them. The camera was designed to make it easy to shoot hand-held panoramic exposures. The Gaoersi 617 uses a large format lens attached to a focusing helicoil. Film advance is done manually via a red window. The shutter and aperture are both set manually, as well. One of the camera's more interesting quirks is that it is multi-format and can be switched between 6x12cm, 6x15cm or 6x17cm.
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Gaoersi 617
Another entry in the "haven't seen this before" category: the Gaoersi multi-format pano camera. This beefy camera out of China can do both 6x17 or 6x12. And just in case one format is too big and the other too small, this camera is even capable of the super uncommon 6x15 frame. If you are particularly crafty, you can even change formats mid roll. ⠀
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This camera only lasted briefly in our inventory (it has since moved on to a good home), so we didn't get much time to test it, but our experience with this type of camera is mostly with the Fuji G617. The Gaoersi is a bit more compact than the Fuji, especially once you take the finder off. This Gaoersi had a Nikkor 90mm f4.5 lens mounted, as compared to the much slower f8 lens, that is standard on the Fuji. The Gaoersi is also a mechanically simpler camera, potentially making it more reliable long term, though we found the arrangement of the focusing helicoid to be a bit questionable. Still, using the camera felt quite nice. ⠀
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If you are intrigued by this type of camera, check out the Dayi 6x17, as well as the Fotoman 6x17 - just to give yourself a few extra options.