Olympus 300 mm options Photo comparision - Cheating Cheetah

Started 2 months ago | Discussions thread
Samuel Dilworth
Samuel Dilworth Regular Member • Posts: 482
Re: Not useful

You took that graciously, Stephen – making me look more than a little rude by comparison. Fair.

I wondered if the hash pattern on the cup was an aliasing artefact. Most digital cameras no longer have anti-aliasing filters (optical low-pass filters), so repeating patterns of dots or lines at the right pitch often excite aliasing. The sharper the lens, the greater the aliasing. Perhaps the prime in particular is picking up the halftone printing dots in the pink background, generating the aliasing artefact.

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