I have always wanted to see the inside of a Canon EF lens anyway. Step 1: Unscrew the three tiny screws securing the inner plastic ring at the rear of the lens.

>> Recently I have acquired the Sigma 105mm f/2.8 EX >> macro lens (Canon EOS model). It is extremely well >> built. I enjoy using it very much. >I would be ...

Nov 19, 2019 · That's a good question. In the past, you have the send the lens to Sigma to have the firmware updated. I don't know if there is anyway you can ...

The value of this lens is exceptional. At $80 from B&H, it is one of the cheapest lenses available. In fact, I don't recall any lens cheaper than this lens ...

One, the Canon EF-S 18-55mm f/3.5-5.6 lens is an extraordinary macro zoom lens. Canon is silent about this lens's macro capability and the lens body quietly ...

An extremely fast ultra wide-angle lens.

The lens is heavy. It is about as heavy as my Canon 300mm f/4 L lens. With massive lenses of this caliber, always support the camera and lens combination via ...

Personally, I've encountered auto focus problems with my Sigma AF105mm macro lens ever since I've had it. I find that sometimes AF is completely redundant in ...

A solid-built ultra wide-angle lens.

The Sigma 24-60mm F2.8 EX DG Lense is one of sigma's latest professional lens creations. Although simple in design, the overall lens offers a stunning array of ...