The Tiffen 4 x 4" #13 (2) Green Filter is a basic contrast filter, primarily for use with black and white film. This green filter subtly darkens skies and lightens foliage. It is commonly associated for use with portraiture and attaining greater separation from skin tones and outdoor backgrounds. When compared to the #11 yellow-green filter, the #13 helps to lighten foliage and other green-colored subjects more.

There is a 2x filter factor with this filter, requiring an increase of 1 stop for normal exposure. Tiffen filters are made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding flat to a tolerance of 10,000th of an inch. This filter measures 4 x 4" / 101.6 x 101.6mm.

#13 Filter for General B&W Contrast    ColorCore Technology

Green contrast filter for black and white film subtly darkens skies and lightens foliage.

Suited for portraiture, this filter helps to separate skin tones from outdoor backgrounds.

Tiffen filters are made using ColorCore technology, a process that involves laminating the filter substrate between 2 pieces of optical glass and grinding flat to a tolerance of 10,000th of an inch.

Related Questions and Answers

Q: 1. can you get this both with the Observations accessory Kit and Observers accessory Kit?

A: cust is asking for a discount bundle..Jay tabi told me to tell you

Q: 2. Does this model track the moon? I want to be able to take HDR photos and Time Lapse of the moon.

A: Yes it can track moon but the setting up is bit tricky. Every time you turn off the telescope you need to set it up again even from the same location. Its a good ameture astro photography telescope but yes need bit of learning for it.

Q: 3. Does B&H carry a solar filter for the Celestron 4SE?

A: MrStarGuy Adjustable Objective White Light Solar Filter (86-117mm OD) B&H # STSGFT039 MFR # SGFT039

Q: 4. can you purchase it with the Observation Kit and the Observer's Kit?

A: cust is asking for a discount bundle..Jay tabi told me to tell you

Q: 5. I have a Meade equatorial mount tripod. Can this scope be purchased without the tripod?

A: The Celestron NexStar 4SE 102mm f/13 Maksutov-Cassegrain GoTo Telescope BH #CEN4SE • MFR #11049 is only sold as a complete set with OTA, mount and tripod.

Q: 6. I have the NexStar 4 se telescope now how do I take photos of the Moon and stars with a Nikon camera through that small eyepiece ? I have a T ring adapter model # 93625 for a Nikon camera it fits in the top eyepiece but how do I use my 25mm plossl and other focal length eyepieces to take close up photos of the moon ?

A: So you would not be able to use the T-Adapter with eyepieces. However we do sell the Celestron SLR Camera Adapter with Integral 2x Barlow Lens. Which would give you some more magnification if you needed. Then you can get the T-Ring that you need to attach your Nikon DSLR. You can do the Vello Lens Mount Adapter - T Mount Lens to Nikon F Mount Camera, which will work with the adapter you have now. As well as the 2X Barlow Lens Camera Adapter. Website link for Barlow: http://bhpho.to/1OmELU1Website link for T-Ring: http://bhpho.to/1d8lKOS

Q: 7. Does this work natively with the app to locate planets, etc., or do I need to purchase the WiFi adapter?

A: The dual servo motors on the mount is the brain of the NexStar 4SE: the iconic NexStar+ computer hand controller. Packed with 40,000+ celestial objects, it can hold up to 100 additional user-defined destinations and is updatable via the Celestron website. It has multiple alignment procedures to get you observing fast—including the super-easy SkyAlign system. Capable of being used in the Northern or Southern Hemispheres, the NexStar has sidereal, lunar, and solar tracking speeds to accurately follow near- and deep-sky objects, plus nine slew speeds. Nothing extra is needed to accomplish this.

Q: 8. Can the 4SE be aligned during the day? I'd like to track the sun (with a proper filter, of course).

A: Yes it can. It has a solar alignment feature. You do need to enable it in setup