Diamond cut from crystal-clear, water-white optical glass, Schneider filters are ground and polished to a precise flatness and planeparallelism (exact parallel relationship between front and back filter surfaces). Then, to ensure perfection, this is verified by a laser interferometer. Schneider filters are then checked with a densitometer for consistent density, and tested with a spectrophotometer for proper light transmission. It's due to this ultra-high consistency, that allows cinematographers to swap like filters mid-shoot with no discernible variation in color or effect. What's more, the unprecedented purity, color saturation and repeatability of Schneider filters virtually eliminate the need for lab color timing correction.

• Consistent precision
• Ultra durability
• Schneider filters work with long lenses

Diamond cut from crystal-clear, water-white optical glass, Schneider filters are ground and polished to a precise flatness and planeparallelism (exact parallel relationship between front and back filter surfaces). Then, to ensure perfection, this is verified by a laser interferometer. Schneider filters are then checked with a densitometer for consistent density, and tested with a spectrophotometer for proper light transmission. It's due to this ultra-high consistency, that allows cinematographers to swap like filters mid-shoot with no discernible variation in color or effect. What's more, the unprecedented purity, color saturation and repeatability of Schneider filters virtually eliminate the need for lab color timing correction.

Schneider filters stand up to the most rigorous demands on set or location. Many feature Schneider's specially formulated hard anti-reflective (AR) coating to resist flaking, peeling and scratching. This proprietary coating also reduces light loss and flare to less than 1% per surface, compared to untreated glass that has a light loss of 4% per surface. Schneider screw-in filters feature virtually jam-proof brass precision mounting rings, while unmounted Schneider laminated filters are protected against delamination and edge-chipping by Schneider's unique Edge Seal, which also reduces edge reflection and edge flare.

The common perception among photographers and cinematographer's is that filters should not be used in front of long length lenses, due to the critically short depth of field of these lenses. This belief is often confirmed when poorly made glass or "plasticresin" filters are placed in front of a long lens, and the degradation of the image is visible simply by looking through the viewfinder. This degradation is caused by poor quality control, low-quality glass and poor glass grinding and polishing techniques used in the manufacture of such filters. Schneider filters have no such problems, and can be used in front of even the longest lens. Diamond-cut from high-quality optical glass, then ground and polished to precise lens-making standards, Schneider filters offer unsurpassed clarity, light transmission and color saturation with absolutely no visible compromise of image quality. Even when stacked, they are the clear choice for use with any lens.

Related Questions and Answers

Q: 1. Would I be able to operate the mount, with my smartphone, from a location where there is no cell service?

A: Yes. The Sky-Watcher Star Adventurer GTi Mount Kit (with Tripod and Pier Extension) can be used with your smartphne even if there is no cell service available.

Q: 2. Will this tracker allow for editable panoramic shots?

A: The Sky-Watcher Star Adventurer GTi Mount Kit (with Tripod and Pier Extension) can be used for creating night sky panorama photos when used with an appropriate camera.It is not intended for use as a landscape panorama mount.

Q: 3. Does this have a built-in intervalometer?

A: Sky-Watcher Star Adventurer GTi Mount Kit (with Tripod and Pier Extension) intervalometer is available in the app that you run on your smartphone. You also need to purchase a shutter release cable separately that connects from the camera to the tracker.

Q: 4. Does this item ship to UK with no tax fee's ? Also do I need to buy the Equatorial Wedge Base for taking astro photos with my DSLR's photo tripod ? or do I need any other accessory for DSLR astro photography? Than you.

A: Can't help on UK taxes. You can use a regular tripod, but you need to point the axis of the mount at Polaris, which may be harder without the wedge. The wedge has a knobbed gear wheel for the elevation. You may also need a ball head to pint your camera at what you want to track. If so, get one with at least a 46mm head.

Q: 5. What’s the full package size and weight? Need to know to ask a friend to bring it to me.

A: The box is 44 x 12.88 x 12.5 inches and weighs 26 pounds.

Q: 6. What kind of plate do is needed to mount a DSLR to this mount? And where can one be obtained? What is the part name and number?

A: The Sky-Watcher Star Adventurer GTi Mount Kit (with Tripod and Pier Extension) can work with either plate; Losmandy V-Series Dovetail Plate (4"), B&H # LOVUP4 MFR # VUP4, https://bhpho.to/4ahw3CZ Or iOptron 7" Vixen Style Universal Dovetail Plate, BH #IO8422178, https://bhpho.to/4cjBtzp And you should get this as well, Oben 1/4"-20 Screw with D-Ring for QR Plates (https://bhpho.to/49TJFoi).

Q: 7. What size Nikon Neutral what size Clear Filter fits the Nikon 180-600 lens?

A: The Nikon NIKKOR Z 180-600mm f/5.6-6.3 VR Lens (Nikon Z), B&H # NIZ18060056, has a front filter thread size of 95mm, so corresponding 95mm filters will fit the lens.

Q: 8. Will this cause vignetting or other issues if I connect it to a Tokina 11-16mm lens while using a crop-sensored Nikon d7100?

A: One filter will not vignette but if you stack 2 filters it will. Even at 11 mm the crop factor of 1.5X gives an effective focal length of 16.5 mm.

Q: 9. Does this package include a dovetail plate for mounting camera/optics?

A: The Sky-Watcher Star Adventurer GTi Mount Kit does not come with a plate.

Q: 10. How tall is the tripod?

A: The Sky-Watcher Star Adventurer GTi Mount Kit (with Tripod and Pier Extension) BH #SKSAGTIMK • MFR #S20595 has a Height Adjustment Range of 26.8 to 44.5" / 68.1 to 113 cm