Opticron Telephoto Adapter 40215

Telephotography (taking high magnification photographs) is now easier than ever to enjoy using Opticron telescopes in conjunction with SLR & D-SLR cameras. In this system the camera lens is substituted for the telescope and coupled directly to the SLR camera body using either a telephoto adapter or an eyepiece+photoadapter combination. T mounts, available for nearly all makes of SLR cameras are also needed to connect the scope assembly to the camera body. Note: Focusing is facilitated on the telescope. Camera may need to be operated in 'MANUAL' mode with shutter locks disengaged where necessary. The high magnification to aperture ratios result in slower shutter speeds compared with conventional telephoto lenses so ISO400+ settings are suggested when using D-SLRs. For 35mm SLRs 400/800 ASA film is recommended. If possible use a cable release or remote control to reduce camera shake when operating the shutter.

Telephoto Adapter 40215 equivalent focal lengths*

• HR 66: 800mm/f.12
• HR 80: 900mm/f.11.3
• ES 80: 950mm/f.11.9
• ES 100: 1250mm/f.12.5
• GS 665: 750mm/f.11.3
• GS 815: 950mm/f.11.7
• IMAGIC 65: 780mm/f.12
• IMAGIC 80: 985mm/f.12.3
• IS WP 50: 585mm/f.11.7**
• IS WP 60: 700mm/f.11.7**
• IS WP 70: 780mm/f.11.1**
• MM2 52: 530mm/f.10

*These are approximate figures based on 35mm SLR cameras. D-SLR cameras use different size image sensors compared to 35mm and so an equivalent conversion figure must be calculated separately
**Optional 40927S close focus adapter