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PHOTOGRAPHIC FIELD FLATTENERS

 

A relatively short focal ratio refractor (f-6-f-7) is capable of taking stunning images of celestial objects when used with a dedicated field flattener. A field flattener is a special lens that essentially converts a perfect visual instrument into a well corrected photographic lens. Our new  modular field flatteners are designed to work with DSLR cameras and can be adapted to work with your ccd camera. To learn more click on the Field Flattener Information Page link immediately below.

FIELD FLATTENER INFORMATION PAGE

Field Flatteners 250

BUY

ITEM

DESCRIPTION

 

SFF7-21-25-150

Photographic field flattener for our f6 refractors:
This field flattener is designed to work with our f-6 optical systems. This includes our SV70ED, SV80ST2 and SV80S. The flattener plugs into the focuser and a DSLR camera mounts to it using a standard photographic t-ring. CCD cameras will also work with this flattener but a threaded extension may be required.

#SFF6 - $265

 

SFF7-21-25-150

Photographic field flattener for our f-7 refractors:
This is our most popular modular flattener designed for all Stellarvue telescopes that operate at a certain focal ratio. The lens inserts into the 2” focuser and uses a tapered insert tube to more accurately seat the flattener in the focuser. The spacing distance from the T-thread on the flattener is 55 - 56 mm so it will work as is with any DSLR camera that has a t-adapter. For other cameras including all ccd cameras, consult us. Usually, a thread extension is all that is needed. This flattener is designed for use with cameras having an APS or smaller chip. This is the majority of cameras on the market.  #SFF7-21 - $265

 

SFF7-3 150

SFF7-25:

Dedicated APS sized f-7 field flattener for use with either the Feather Touch 2.5” focuser or the new Stellarvue 2.5” dual speed focuser. This is the flattener for imaging with APS sized and smaller chips when used with any of our telescopes that use the 2.5” focuser.         #SFF7-25 - $295

 

SFF7-3 150

SFF7-3FT:
Same optics as above but this unit threads into the rear of the Feather Touch 3” focuser. Use this with SV telescopes made with the 3” Feather Touch focuser.
#SFF7-3FT - $319

 

T-Ring90150

Standard 42 mm T-ring for Canon DSLR cameras

Attach your Canon DSLR camera to any of the flatteners above using this 42 mm standard T-ring.

$12

 

T-Ring90150

Standard 42 mm T-ring for Nikon DSLR cameras

Attach your Nikon DSLR camera to any of the flatteners above using this 42 mm standard T-ring.

$12

 

SFF25-3 150

Large Chip flattener for 2.5” focusers

This flattener is made for our f-7 refractors. It threads to the rear of our new Stellarvue 2.5” focuser or the Feather Touch 2.5” focuser. This flattener uses an over-sized 48 mm camera attachment thread. Using one of the over-sized 48 mm T rings below, a DSLR camera may be used with this field flattener. This provides a completely threaded mounting solution for larger chip cameras when used a 2.5” focuser. When using a CCD astro camera, spacer rings and/or extension tubes may be required. Learn more here and get what you need for the necessary, ideal spacing. Contact us if you need more information.

#SFF3-25 - $329

 

SFF25-3 150

Large Chip flattener for Feather Touch 3” focuser

This flattener is made for our f-7 refractors. It threads to the rear of the Feather Touch 3” focuser. This flattener uses an over-sized 48 mm camera attachment thread. Using one of the over-sized 48 mm T rings below, a DSLR camera may be used with this field flattener. This provides a completely threaded mounting solution for larger chip cameras when used with the 3” Feather Touch focuser. When using a CCD astro camera, spacer rings and/or extension tubes may be required. Learn more here and get what you need for the necessary, ideal spacing. Contact us if you need more information. 

#SFF3-3FT - $329

 

T-Ring4890150

Over-sized 48 mm T-ring for Canon DSLR cameras
For use with our new SFF3 type flatteners above, this special t ring uses the over-sized 48 mm threads to minimize or eliminate vignetting.

# SFFTCANON - $28

 

T-Ring4890150

Over-sized 48 mm T-ring for Nikon DSLR cameras
For use with our new SFF3 type flatteners above, this special t ring uses the over-sized 48 mm threads to minimize or eliminate vignetting.

# SFFTNIKON - $21

 

T-Ring4890150

Over-sized 48 mm T-ring for Sony DSLR cameras
For use with our new SFF3 type flatteners above, this special t ring uses the over-sized 48 mm threads to minimize or eliminate vignetting.

# SFFTSONY - $25

 

STE055

Focuser Extender Tube for Imaging

This threaded tube is used with the 2.5” Stellarvue or Feather Touch focusers. Simply un-thread the focuser, thread this tube in its place and thread the focuser into the tube. This provides an additional 55 mm of extension. This allows most cameras to come to focus without having to rack the focuser all the way out. This minimizes and sag in the focuser drawtube when using heavy camera gear.

#STE55 - $69

SFE adapters40048 mm spacer rings and extension tubes

Now you can attain the proper spacing for your camera using spacer rings and extension tubes. On the SFF7, these will go between the lens cell and the 2” insert tube. On the SFF3, these attach to the 48 mm t-thread. We now offer three spacer rings (1, 2, and 3 mm) and various extension tubes including a variable extension tube for fine tuning the amount of spacing. PLEASE NOTE: These are not for use with the standard t-thread which is 42 mm. These are the larger 48 mm size which is the same as a 2” filter thread.

 

1 mm spacer ring. #SFE-M48-001  $14

 

2 mm spacer ring. #SFE-M48-002  $14

 

3 mm spacer ring. #SFE-M48-003  $14

 

5 mm M48 Extension Tube.  #SFE-M48-005  $19

 

10 mm M48 Extension Tube.  #SFE-M48-010  $19

 

20 mm M48 Extension Tube.  #SFE-M48-020  $19

 

30 mm M48 Extension Tube.  #SFE-M48-030  $19

 

Variable (8-12 mm) M48 Extension Tube.  #SFE-M48-V  $29

 

Set of one each spacer rings and extension tubes.  Set of eight. Save $30  #SFE-M48-SET  $117

ADAPTERS

BUY

ITEM

DESCRIPTION

 

SFAF48M42150

M48 mm to M42 mm adapter.

This adapts the over-sized M48 X .75 T thread (same as 2” filter thread) to the standard M42 X .75 T thread. It adds about 8 mm to the spacing so it is not recommended for use with a DSLR camera and our SFF3 flattener. However, when using CCD cameras that have a shorter back focus and use the standard T-thread, this adapter along with our 48 mm extension tubes above will permit you to get proper spacing.

#SFAF48M42 - $29

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Stellarvue® designs and handcrafts the finest refractor telescopes for sale. Additionally, we provide programs and experiences to foster a greater appreciation of our natural world while encouraging individual exploration of the universe.

All specifications and prices are subject to change without notice. Designs and materials are often modified to improve them. All copy and photographs are copyright 2013 and may not be used without permission.

Stellarvue® trademarks and service marks, logos, product and service names are trademarks of Stellarvue (the "Stellarvue Marks"). Without Stellarvue's prior permission, these marks may not be displayed or used in any manner. Some products may be patent pending and we consider all of our designs proprietary. Stellarvue® will take necessary action against any dealer in the USA carrying imitations of our proprietary products. Dealers are warned to check with us first before purchasing similar products as there may be illicit copies of products we specifically designed. Such products may only be sold by authorized Stellarvue® dealers. Contact mail@stellarvue.com or call (530) 823-7796 for more information