| Joined: | Sun Apr 1st, 2012 |
| Location: | Carthew, Cornwall, United Kingdom |
| Posts: | 6828 |
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Better than an emoticon.
http://en.wikipedia.org/wiki/Parfocal_lens
Should have put the reference link before.
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Still learning after all these years!
https://nikondslr.uk/gallery_view.php?user=2&folderid=none