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Hand held night vision with PVS-14


Highburymark
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Have had some lovely views of M42, the Flame and Rosette nebulae in recent evenings with 120mm frac, Chroma 3nm filter and 40mm/32mm TV Plossls, despite the near full Moon, and Orion still quite low in the murk over central London. The magnificence of M42 with night vision never ceases to take my breath away, no matter how familiar. Last night the detail was incredible - I think better than I’ve seen in much darker environments, as the brightness is better controlled. I wonder if anyone else has noticed this? I hasten to add it’s the only DSO that could possible benefit from extra light pollution, but last night it was glorious.

The one disadvantage with a PVS-14 set-up is of course lack of flexibility for prime focus use. But I’m thinking about buying a little 60mm frac that I can hand hold for very quick sessions in the garden - or take on walks. Am sure it would work well for powers up to 30-40x. These instruments are so tiny these days I’m hoping it should prove easy to use. 

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I've used my Evoguide50 (w a flattener inside it) and then a TV40+PVS14 - all on a straight-through basis (takes it to f3).  It does work - is a bit like the old nautical scopes from a form-factor basis.  I want to try one of the 3x lenses at some stage (might be easier form-factor?)

Here's a smartphoneM42 with TV76+TV40+PVS14.  Handheld (hence some trails) & I also shifted the black point rightwards b/c the  low-light std camera takes 3s images so the background looks a lot brighter in the image than the EP.

(PS - I definitely want to try a sped-up 7" on M42 later in the season!)

M42 TV76 TV40 PVS14.png

Edited by vineyard
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1 hour ago, vineyard said:

I've used my Evoguide50 (w a flattener inside it) and then a TV40+PVS14 - all on a straight-through basis (takes it to f3).  It does work - is a bit like the old nautical scopes from a form-factor basis.  I want to try one of the 3x lenses at some stage (might be easier form-factor?)

Here's a smartphoneM42 with TV76+TV40+PVS14.  Handheld (hence some trails) & I also shifted the black point rightwards b/c the  low-light std camera takes 3s images so the background looks a lot brighter in the image than the EP.

(PS - I definitely want to try a sped-up 7" on M42 later in the season!)

M42 TV76 TV40 PVS14.png

I looked at the Evoguide too - handy option for NV, nice and fast. But get your point about form factor.

The F/6 60EDs are about 5cm shorter (230mm without a diagonal), so might be slightly easier to handle. But will have to add spacer or two to reach focus. Just been looking at cheap monopods - fitted with a small camera ball head, with stabilising legs so self supporting, easy to carry around. Think that’s the direction I’ll take.

 

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3x is super easy to use. What’s wrong with the “pirate scope”look? I have an 80mm and it’s fine to sweep about. You don’t want to make the view too stable, a bit of wobbling  makes the nebulae easier to see.

Peter

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Little Tecnosky 60ED F/6 ordered for around £300. Dug out Manfrotto ball head mount for camera tripod for when more stability needed, and have a Baader T2 amici prism which will no doubt be useful. 
With TV plossl 67mm, I’ll have a 5x NV monocular. I also have a Baader zoom, which can be used with the PVS-14 with an adapter from RAF Camera, so looking forward to trying that. Am hoping this will be a great way to improve the flexibility of afocal night vision with the PVS-14. Will report back on how things go.

Edited by Highburymark
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Looking forward to your report. Had another go attaching my OVNI-B to a comiscar 75mm lens the other day to try handheld. Good views, albeit from a light polluted back garden. Main issue though is I can’t get focus without having the c-mount to lens attachment loose, which doesn’t feel secure and makes it tricky to then adjust the f-stop. I think if the adapter that screw into the c-mount (second picture middle) and on to the lens was say 5mm longer I’d be fine. Not sure if there are any products on the market for this?

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