Sharpstar 61EDPH III Triplet APO

Name: Sharpstar 61EDPH III Triplet APO
Brand: Sharpstar

Sharpstar

Sharpstar 61EDPH III is a 61 mm Triplet ED APO refractor for wide-to-mid-field nebulae and general deep-sky imaging.

telescope $$ Small refractors Travel kit Wide-field nebulae

Best Current Offer

High Point Scientific

In stock

$605.00

Other retailers

Agena AstroProducts (Out of stock)
$603.90

Specifications

Optics

Optical design: Triplet ED APO refractor
Aperture: 61 mm
Focal length: 360 mm
Focal ratio: f/5.9
Dawes limit: 1.9"
Glass / elements: Triplet ED APO

Specifications

Focuser: 2.5"

Imaging

Image circle: 44 mm
Camera format: Full frame with reducer/flattener
Full-frame coverage: Yes
Back focus: 55 mm with matching reducer/flattener
Reducer / flattener: Optional 0.75× reducer: 270 mm at f/4.4

Astrophotography Fit

Best for wide-to-mid-field nebulae and general deep-sky imaging when the mount, camera format, and correction hardware are chosen as one system.

Sharpstar 61EDPH III sits in the telescope slot for wide-to-mid-field nebulae and general deep-sky imaging. The useful headline specs are aperture 61 mm, focal length 360 mm, f/5.9.

Camera coverage: Full frame with reducer/flattener. Image circle: 44 mm. Back focus: 55 mm with matching reducer/flattener.

Refractors keep the field routine calmer: no regular collimation, predictable cooldown, and a clean path to autofocus and filtered imaging. The tradeoff is aperture and reach.

Best paired with

Corrected field flattener or reducer when the design requires one
Cooled APS-C or smaller astro cameras matched to the image circle
Autofocus, guide scope or OAG, and a mount with comfortable payload margin

Not recommended for

Large full-frame sensors unless the corrected field supports them
Very small travel mounts near their realistic imaging payload limit
Buyers expecting one telescope to be ideal for every target size

Where To Buy

Some links on this page are affiliate links. Prices and availability are pulled automatically from each retailer and updated daily.

Retailer	Price	Availability	View Offer
High Point Scientific High Point Scientific	$605.00	In stock Updated 9/19/2026	View Offer - $605.00
Agena AstroProducts Agena AstroProducts	$603.90	Out of stock Updated 9/20/2026	View Offer - $603.90

Price History

Chronological retailer pricing with out-of-stock points shown at reduced opacity.

Agena AstroProducts High Point Scientific