#Full frame Newt

20 messages · Page 1 of 1 (latest)

hexed belfry
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I'm looking for a newt that can handle a full frame dslr. If anyone has one that you can recommend I would really appreciate it.

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Even if there would be some vingette at corners I could crop it out since the cameras field is pretty big, or am I wrong?

fickle idol
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Main issue isnt vignetting from my experince but very elongated stars at the edges, so using the full FOV of the full frame isnt probably a great idea. You should probably shoot in APSC to save storage since anything around that area is probably useless anyway

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Might be also somewhat shit editing & suboptimal collimation but yea... this is already somewhat cropped in (taken with full frame though), so imagine how much worse it is even further out

mossy nest
# hexed belfry Even if there would be some vingette at corners I could crop it out since the ca...

So really it depends on quite a few things like secondary mirror size, but mostly the coma corrector! full frame coma correctors are not cheap, and youre gonna have to be willing to put the money in for one!

Another thing to really consider is collimation (especially if you are F4) collimation has to be absolute spot on if you want it to work, secondary is mainly the issue, some smaller sensors you can get away with slightly decentered secondary. with full frame that is not the case, ofcourse thats kinda pointless if you dont get primary perfect too (: if you dont collimate to "full frame standards" youll be met with comatic stars in likely all corners, and uneven illumination across the FOV (isnt a issue because flats exist)

Hope this helps in some way!

mossy nest
hexed belfry
mossy nest
mossy nest
hexed belfry
hexed belfry
surreal tundra
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Imo it should be fine. I use 130pds which has a smaller secondary mirror and its a slight pain in the ass. So a bit bigger one should be enough

hexed belfry
surreal tundra
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Yop

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Canon 6d

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Here are two examples. These two are the least cropped pics i could find

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This one shows some problems in the corners