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OVNI-M Night Vision Eyepiece Green Phosphor FOM1800 to 2400

can be shipped within 30-60 days

Price includes VAT, plus delivery

The OVNI-M Series is available with either Green or White Phosphor Tubes. Traditionally Green has been the common intensifier tube phosphor choice. Following technology improvements, white phosphor is now available which results in a much more natural intensified view that is particularly well suited to astronomy applications. White Phosphor tubes are a little more expensive than Green and so we offer them as a seperate option. Please see the image below for a comparison.


OVNI-N Night Vision Eyepieces are designed specifically for astronomy and should not be confused with other night vision products. The main differences between an OVNI Night Vision monocular for astronomy and one sourced from a specialist night vision supplier, such as the common PVS-14 type are as follows;

- The OVNI-M features a tube that is hand picked for astronomical use and that is supplied with a test report from the tube manufacturer. No two intensifier tubes are the same and so night vision purchased 'off the shelf' can perform very differently from one that is hand picked and tested to operate within specific parameters. You can be sure with OVNI-M that only the very best tubes are fitted.

- The OVNI-M uses thinfilm type intensifier tubes specifically. This provides sharper star shapes and also helps increase tube life which is typically 10,000 hours (at max performance)

- OVNI-M features an Autogated function. This protects the tube from strong light sources. This function is often an option with off the shelf night vision equipment

- A traditional night vision system includes a lens. This means it can only be used afocally. The OVNI-M is designed for astronomy and so as standard can be used at prime focus, afocally and standalone making it very verstile

- Via Astrograph, the OVNI-M is supplied with a filter adapter allowing you to attach both 1.25" and 2" filters

The highest specification of image intensifier tube is commonly referred to as GEN 3 or GEN 3+ (Generation 3). This is a term that was first used in the US. It does not refer to a specific technology and it is really only a guide to the general performance of a night vision system. It should be understood that there is no GEN 4 although some tube companies use the number 4 in there product descriptions. In reality the generation used in the product description is no real guide to the performance of the product. This is why we do note quote such terms with respect to the OVNI-M.

Although it is not the only detirmining factor to the performance of an intensifier tube, the FOM (Figure Of Merit) is a good indicator as to its performance. This is derived by multiplying the tubes Resolution (in lp/mm - line pairs per mm) and its Signal to Noise ratio. We use the FOM to differentiate tubes. Basically the higher the FOM, the more sensitive it is. We offer three levels for the OVNI-M. 1800, 2100 and 2400. The latter is very difficult to acheive in production and is therefore the most expensive, it does however represent the best performance that current technology allows.

We keep an example of the OVNI-M on demonstration. Customer orders for OVNI-M's require a 30% deposit. Delivery time is 30-60 days. This lead time is required due to the nature of the intensifier tube which is selected and tested on the sky before delivery from OVNI.


Browse these categories as well: Night Vision, Night Vision Eyepieces, OVNI Night Vision