| Joined: | Fri Feb 8th, 2019 |
| Location: | Leigh On Sea, Essex , United Kingdom |
| Posts: | 1422 |
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Robert, does the lens get less sharp when you shoot a distant point and use focus past the infinity mark?
Lens theory says it shouldnt matter as parallel rays are parallel (e.g. notional infinity source).
That does not sense to me - surely if the lens goes beyond infinity in terms of its focussing, then parallel rays will be focussed to a point which is not in the sensor plane?
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