Photography

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A place to politely discuss the tools, technique and culture of photography.

This is not a good place to simply share cool photos/videos or promote your own work and projects, but rather a place to discuss photography as an art and post things that would be of interest to other photographers.

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communick@viewfinder.pro

300mm mirror eos compatible lense (alien.top)

submitted 10 months ago by Willows97@alien.top to c/photography@viewfinder.pro

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Hi.

I'm interested in using this lense in a small telescope (https://cults3d.com/en/3d-model/gadget/the-micro-scope-build-pack) but I am very many decades behind in photography.

I need to know what I'm looking for, is it fixed or zoom, is it compatable with EF mounts?

Do they even exist now?

How would I know what the mount is? Is it written on the lense body?

Atb.

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[–] dddontshoot@alien.top 1 points 10 months ago

So, it looks like they've designed a 3D printed camera body, that takes EF lenses, and they use a raspberry pi sensor to capture the image.

The lens they're using is a Samyang 300mm f/6.3 reflex lens.

Like all mirror lenses, it will be fixed aperture, and manual focus with no zoom (Yes I know, someone somewhere built an autofocus reflex).

I think, if you're looking at buying this lens, you need to rely on the seller telling you what mount it has, which can is very unhelpful if you're buying used. Keep in mind that this lens won't have any electrical contacts like most modern lenses do.

So, you're looking for an EF mount right? Is that what your camera takes? Because it's available to fit Canon, Fujifilm, Sony and Micro Four Thirds mirrorless cameras.

https://en.wikipedia.org/wiki/Canon_EF_lens_mount

Here's a review

https://www.dpreview.com/forums/post/51840708