Hutech IDAS LPS-P3 fog filter in M48 2" socket

The IDAS LPS-P3 nebula filter is produced in Japan and is one of the best nebula filters for astrophotography with all color cameras, but is also suitable for monochrome cameras.

♦ The LPS-P3-48 comes in a 2" filter holder with an M48x0.75 filter thread

♦ Effective suppression of scattered light and nightglow without severe color errors

♦ Ideal for current astro color cameras - the color balance was designed for this

♦ Also very suitable for other color cameras (CCD/CMOS and DSLR).

♦ Can also be used very well for luminance recordings with monochrome cameras

♦ Exposure time factor 2 - double exposure time is possible before reaching the sky background

♦ High-quality anti-reflective coating thanks to an effective anti-reflective layer

♦ Scratch-resistant hard coating

♦ Made in Japan

 
Hutech IDAS LPS-P3 fog filter - 2" socket
IDAS filters from Hutech have been specially developed for astrophotography. On the one hand, they eliminate the sources of artificial scattered light and still leave the natural color. This is exactly what distinguishes these filters from almost all UHC filters in the field of astrophotography. UHC filters are optimized for visual use and cause the sky background to be colored during photography. Pure scattered light filters, on the other hand, are often not effective enough.

The most important features of the IDAS LPS-P3 mist filter:
♦ Specially developed for photography with current single-shot color astro cameras - the color balance has been designed accordingly
♦ Also very suitable for other color cameras (CCD/CMOS and DSLR).
♦ Can also be used very well for luminance recordings with monochrome cameras
♦ High-quality anti-reflective coating - anti-reflective layer
♦ Particularly scratch-resistant hard coating
♦ Absorption of urban scattered light (mercury, sodium vapor lamps) and nightglow
♦ Optical notch filter: The areas between the disturbing lines are mostly passed through, in contrast to, for example, deep sky filters. This means there is less light loss.
♦ Blocks UV and NIR up to 1200 nm more strongly than previous models - better effect with today's Sony STARVIS sensors
♦ Peaks higher and smoother than previous models, blocking stronger
♦ Made in Japan
 
Exposure time extension - factor 2:
By specifically blocking the disruptive mercury lines and the area around the sodium D lines, the IDAS LPS allows the exposure time to be extended by a factor of 2. However, the important lines in the deep sky area (e.g. H-Alpha and O-III) are over 95% transmitted.

To put it simply, you can expose twice as long until the sky background comes through, but the object appears significantly stronger and more contrasty against the background than without a filter.
 
Suitable objects:

Not only gas nebulae and planetary nebulae can be successfully increased in contrast with the IDAS nebula filter, the balanced color behavior also enables images of star clusters and galaxies. Even close to cities, photos can be taken that are more reminiscent of a dark country sky.

 
Type: scattered light filter, notch filter
Socket: aluminum, 2" M48x0.75 filter thread
Substrate thickness: 2.5 mm
Filter glass diameter: 49 mm


♦ 2" fog filter in socket
♦ Protective container