Thread: Canon 400mm F2.8 L FD (non-IS, manual)
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Old 03-10-2015, 02:12 PM
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bojan
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Location: Mt Waverley, VIC
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I am using one of those:
http://www.ebay.com.au/itm/30mm-to-1...item3ab155cf3a
Also, round aperture doesn't produce diffraction spikes.
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