Why is my 18105mm kit lens so bad at macros? Gra­ham Collins, South Pa­cific

NPhoto - - Niko­pe­dia -

Rod says… Gra­ham ex­plains: “In my film days I used ex­ten­sion rings to get a mag­ni­fied im­age. My dig­i­tal im­ages are sharp with a prime lens. So what’s the prob­lem with my kit lens?” Well, prob­a­bly noth­ing, ex­cept that mod­ern zooms are more com­plex than tra­di­tional primes. By us­ing it with ex­ten­sion rings you’re forc­ing it to fo­cus much closer than its op­ti­mum fo­cus range.

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