All About Photographic Lenses.
Specifications, comparison, reviews, MTF-charts for lenses by Canon, Nikon, Sony, Pentax, Olympus, Sigma, Tamron, Carl Zeiss, etc.

Celestron C90 Mak 1250mm fixed f/13.9 Maksutov-Cassegrain Lens

Do you like a good instrumental music?
Listen to new beautiful music from composer Sergei Borodin. Click HERE...

Pictures

Celestron C90 Mak 1250mm fixed f/13.9 Maksutov-Cassegrain lens

Celestron C90 Mak 1250mm fixed f/13.9 Maksutov-Cassegrain lens

Celestron C90 Mak 1250mm fixed f/13.9 Maksutov-Cassegrain lens

Optical design

Celestron C90 Mak 1250mm fixed f/13.9 Maksutov-Cassegrain optical design

Format: 35mm SLR

Type: Prime lens

Focusing: Manual Focus (MF)

Lens mounts: T2 mount

Optical design: Maksutov-Cassegrain catadioptric telescope

User reviews (0)

Photos (0)

Tests (0)

Owners (1)

Views (942)

Average price: $265

Specifications:

Focal lengthMax. apertureMin. apertureBladesMin. Focus (m.)Filter Ø (mm.)Weight (gr/oz)Length (mm/in)
1300mmf/12f/15 4.6no2100/74,1400/15,7

Additional information:

A 90mm aperture Maksutov-Cassegrain, 1250mm focal length, focal ratio of 13.89 (fixed f/stop). This spotting scope features a T2 threaded mount for ease in adapting mirrorless and DSLR cameras. Suitable for observing the Sun (with appropriate Sun filter), the Moon, Venus, Saturn, Jupiter, etc. May also be used to observe some deep space objects. In addition to mounting your camera straight to the scope, you may also use eyepiece projectionwith a suitable adapter. Accepts 1.25" telescope accessories.


Links to online resources:
Posted by: Rob T   Date of publication: 09.08.2023


Mechanical quality0.000
Optical quality0.000
Usability0.000
Pricing / Value0.000
Bokeh0.000
Overall lens rating
0.00

Embed to Blog (HTML) Embed to Forum (BBcode)