What is the main advantage of the Kowa TSN-88S's fluorite crystal lens?
The 88mm pure fluorite crystal objective lens virtually eliminates chromatic aberration (color fringing). Kowa says this performance cannot be matched by an optical system made of glass lenses, giving sharp, high-contrast images with accurate color, especially at high magnification.
How does the straight TSN-88S differ from the angled TSN-88A?
The TSN-88S is the straight viewing version and the TSN-88A the angled version of the same TSN-88 PROMINAR, with the same 88 mm fluorite crystal objective, 5 m minimum focus, 95 mm filter thread and dual focus. The straight TSN-88S body is 326 mm (12.8 in) long and weighs 3.26 lb. Kowa does not rank one body type above the other, so the choice is a matter of personal preference.
How does the dual-focus system on the Kowa TSN-88S work?
The focus knob has a two-step mechanism, one step for quick focus and one for fine focus. When the subject is well out of focus, the quick focus brings it into focus 3 times faster than the fine focus; the fine focus is for slight adjustments, with a smooth transition between the two.
What is the magnification range of the included TE-11WZ II eyepiece on the Kowa TSN-88S?
The included TE-11WZ II wide-angle zoom eyepiece provides a magnification range of 25x to 60x on the Kowa TSN-88S spotting scope.
Can I use filters with the Kowa TSN-88S spotting scope?
Yes. The objective has a 95mm filter thread that lets various types of filters be attached, including the Kowa TP-95FT protection filter, which carries KR coating to repel dirt and moisture and helps protect the objective lens from harsh environments.
How do I attach the Kowa TSN-88S to my tripod?
The tripod mount on the Kowa TSN-88S has a removable screw that allows it to fit both 1/4-inch and 3/8-inch tripod heads. With the screw inserted, it fits 1/4-inch tripods. Removing the screw lets the scope attach to 3/8-inch tripods.
Is the Kowa TSN-88S suitable for digiscoping?
Yes. Kowa calls the TSN-88 PROMINAR the king of digiscoping. It has an accessory collar for Kowa camera adapters such as the TSN-PA7 and TSN-DA10, used with the TE-11WZ II eyepiece, and Kowa says its improved coatings further enhance digiscoping performance even at the highest magnifications.
How much do the Kowa TSN-88S body and eyepiece weigh?
The Kowa TSN-88S body weighs 3.26 lb and the included TE-11WZ II eyepiece weighs 0.80 lb.
What does the KR coating on the Kowa TSN-88S do?
The KR coating on the objective lens repels dirt, moisture and dust from building on the surface. Kowa says that, together with the fully waterproof and nitrogen sealed shell, it makes the scope reassuringly rugged.
What is covered by the Kowa Limited Lifetime Warranty for the TSN-88S?
The Kowa Limited Lifetime Warranty covers defects in materials and workmanship for the lifetime of the product to the original owner who purchased it from an authorized North American Kowa retailer, and Kowa requests product registration within 30 days of purchase. It does not cover damage from unauthorized repair, abuse, misuse, or normal wear and tear. Lens caps, cases, and straps are covered for their lifetime but not for accidental loss.
