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| Pentax K Mount Adaptor | |||||||||||||||
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| Total lens base to CCD thickness is 0.050" less than Pentax 35mm camera Lens base to film. Better control of infinity focus point and compensates for filter thickness and velocity factor. | |||||||||||||||
| Testing: Initial testing was done indoors using a 300mm F/4 SMC Pentax-A lens. To prevent overexposures, a full aperture (77mm) solar H-Alpha energy rejection prefilter was used. The outdoor exposures used a 49mm B&K #93 IR Filter in the filter bar. This further reduced the light intensity to prevent overexposure during outdoor testing in the daylight. |
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