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TEC 140 F9.6 Fluorite Doublet announced
Wednesday, November 27, 2024 by Richard Harris
At the beginning of October, Telescope Engineering Company (TEC) introduced its new 140mm F9.6 Fluorite Doublet. Originally designed with a 140mm F10.5 glass combination, the initial materials did not meet long-term reliability standards. Upon advice from the glass manufacturer that the original cho...
Telescope light gathering power and resolution
Tuesday, October 15, 2024 by Leon Palmer
Exploring two key properties of telescopes: light-gathering power and resolution. These attributes, determined by the objective's diameter, affect how faint objects can be seen and how well close stars can be resolved. With a focus on practical examples, such as comparing the human eye to an 8-i...
A new Hercules rotating focuser lands from Optec
Thursday, May 2, 2024 by Richard Harris
Optec has introduced the Hercules Rotating Focuser, a new device that merges camera field rotation with telescope focusing capabilities. More compact than its predecessor, the robust Gemini Focusing Rotator, the Hercules offers a full 3-inch clear aperture and 0.35 inches. Optec Hercules Focusing...
iOptron CEM120 center-balanced equatorial mount
Friday, December 1, 2017 by Richard Harris
iOptron's CEM120 Center Balanced Equatorial Mount, is a significant addition to its lineup, priced at $5,128. This mount is designed to meet the increasing demand for a stable and accurate platform capable of carrying larger instruments and complex imaging arrays. The CEM120's unique &q...