Log Astronomy: NEW PRODUCT IN STOCK: The 0.8x Focal Reducer

Add a wide-field twist to a time-tested telescope design!

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NEW PRODUCT ALERT

The NEW 0.8x Focal Reducer

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Add a wide-field twist to a time-tested telescope

The NEW Explore Scientific 0.8x Focal Reducer lets astrophotographers explore the wonders of wide-field astrophotography.

The 2-element 0.8x focal reducer turns our Essential Series and FCD100 Series 80mm Refractors, which have a focal length of 480 mm, into devices with a focal length of 384 mm. The reducer changes the telescopes from an f/ratio of f/6 to a much faster f/4.8.

The device turns the 102 mm telescopes, with a focal length of 714 mm, into telescopes with a focal length of 571 mm: From f/7 to f/5.6.

Compare this with smaller diameter wide-field telescopes. The Explore Scientific ES and FCD100 80mm telescopes offer significantly more light-gathering aperture. The ES and FCD100 telescopes gather:

1.3 times more light than a 70 mm telescope
1.8 times more light than a 60 mm telescope
A whopping 2.6 times more light than a 50 mm telescope

The faster f/ratio, coupled with more light-gathering aperture, allows more light to fall onto the camera sensor. For instance, to capture the same amount of light as a 100-second exposure with the Explore Scientific 80 mm takes 256 seconds on a 50 mm, 178 seconds on a 60 mm, and 131 sec on 70 mm – assuming the same f/ratio. This means that the Explore Scientific 80mm telescope with the 0.8x Focal Reducer can capture far more detail faster than the competition.

The focal reducer, which has 55 mm (+/- 2 mm) of back spacing, is threaded to accept a standard 42 mm T-ring, making attaching a camera easy.

Astrophotographers Donna and Donnie Houston captured this image of the Cygnus Loop using the 80mm FCD100 Series Air-Spaced Triplet Refractor with the NEW 0.8x Focal Reducer.

$ED80 Essential Series Refractor & 0.8x focal reducer$

ED80 Essential Series Air-Spaced Triplet Refractor with 0.8x Focal Reducer

$799.99

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$ED80 FCD100 Refractor and 0.8x Focal Reducer$

ED80 FCD100 Series Air-Spaced Triplet Refractor with 0.8x Focal Reducer

$1199.99

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$ED80 Essential Series Refractor & 0.8x focal reducer$

ED80 Essential Series Air-Spaced Triplet Refractor with 0.8x Focal Reducer and iEXOS-100-2 PMC-Eight Tracker Mount

$999.94

$1399.97

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$ED80 FCD100 Refractor and 0.8x Focal Reducer$

ED80 FCD100 Series Air-Spaced Triplet Refractor with 0.8x Focal Reducer and iEXOS-100-2 PMC-Eight Tracker Mount

$1399.94

$1799.97

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10%-off discount code ends in hours!

Our special discount code HOLIDAY10 is set to expire in a few hours. If you act now, you can still save 10% on most items when you use the code at checkout! HOLIDAY10 applies site-wide to regularly-priced, in-stock items from Explore Scientific, National Geographic, Explore One, Explore Science, Bresser and Alpen Optics.

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