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Telephotography and digiscoping is easy to enjoy using Opticron fieldscopes in combination with a range of 
imaging devices. If you are thinking about taking photos and video through your fieldscope we currently offer the 
following options:

1. Telephotography with an SLR, DSLR or compact system camera. 
In this system the camera lens is substituted for the 
fiel telephotoadapter or fiel eyepiece 
+ photoadapter. To convert your ES fieldscope to a 
1250mm

1

/f.12.5 telephoto lens, you will need a 40215 

telephotoadapter or suitable push fit photoadapter for your 
viewing eyepiece.

2

  

A T-mount is required to connect the assembly to the 
camera body.

1

  This is an approximate figure based on 35mm SLR cameras. 

DSLR/compact system cameras use different sized image sensors 
compared to 35mm so an equivalent telephoto conversion figure 
must be calculated separately.

2

  For information on telephotoadapters/photoadapters visit our 

Telephotography and Digiscoping pages at www.opticron.co.uk

2. Phonescoping with a suitable smartphone and the USM-2.
The USM-2 offers a simple, flexible way of connecting your smartphone to your telescope 
eyepiece and recording video or taking photos. The mount features a plate with adjustable 
clamps to position and hold the smartphone on one side. On the other is an adjustable 3 pin 
clamp that fixes over the eyepiece.

To find out more visit the Telephotography and Digiscoping pages at www.opticron.co.uk or contact Sales  
on +44 (0)1582 726522.

Telephotography

Camera body

1. Telephotoadapter or
2.  Photoa 

eyepiece (inside)

T-mount

Summary of Contents for ES 100 GA ED/45

Page 1: ...ES v4 Fieldscopes User Instructions and 30 Year Guarantee Model ES 100 GA ED 45 ...

Page 2: ...s wheel D Tripod sleeve with 90 rotation and large footprint tripod adapter socket E Retractable lens hood extend when viewing in bright sunlight Fieldscope includes an integrated rubber objective lens cap not illustrated Main Features Specifications Specifications 100 ED 45 Product Code OG Dia mm Close Focus m Length mm Weight g 41261 100 10 497 2830 A B C D E ...

Page 3: ...ion when wearing glasses This ensures the maximum available field of view is obtained Be sure to return the eyecup to the up position if you or anybody else wants to view without glasses 4 To focus locate the subject in the centre of the field of view and rotate the focus wheel until the subject comes into sharp focus At high magnifications when depth of focus is shorter use the fine focus adjustm...

Page 4: ...ust using compressed air or a lens cleaning brush Caution Hard and persistent rubbing of dirty surfaces can cause abrasive scratches on the surface of the glass which may distort viewing Breathe on exposed glass surface and then wipe with an optical cleaning cloth code 30277 in a circular motion until the surface is clean again Do not attempt to dismantle the instrument as this will invalidate the...

Page 5: ...ure based on 35mm SLR cameras DSLR compact system cameras use different sized image sensors compared to 35mm so an equivalent telephoto conversion figure must be calculated separately 2 For information on telephotoadapters photoadapters visit our Telephotography and Digiscoping pages at www opticron co uk 2 Phonescoping with a suitable smartphone and the USM 2 The USM 2 offers a simple flexible wa...

Page 6: ...e will assume responsibility for the labour and material costs during the first 10 years after purchase We reserve the right to decide whether defective parts should be repaired or replaced ii During the next 20 years we will assume responsibility for material costs only charging corresponding labour costs iii We will accept no liability for damage caused by incorrect use or for any repairs or act...

Page 7: ...hone us during normal working hours on the numbers given We will need the product name and serial number if applicable purchase date and outlet your name and postcode Registration is voluntary and failure to register will not diminish your rights under the guarantee Privacy Opticron takes your privacy seriously and we do not share personal information with other companies ...

Page 8: ...Address Opticron Unit 21 Titan Court Laporte Way Luton Bedfordshire LU4 8EF UK Phone 44 0 1582 726522 Email sales opticron co uk ...

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