Image Stabilizer + Tripod

Common wisdom says that you should shut off your lens’ image stabilizer when shooting from a tripod. There’s another saying that it’s safe to use on newer generation lenses, because it detects that the lens is steady and turns off the ill-effects automatically. Actually I belong to the former camp. When I compared my new non-L prime trio with the L zooms, I did a pair of test shots with my Canon EF 70-200mm f/2.8L IS USM (version 1, which I own for 9 years) for the sake of this post.

The pictures show the center of the image, where I focused with contrast detect focus and validated that the focus is spot on manually through live view (by executing a manual focusing step to see whether I can focus any better). The camera used was a Canon 5D Mark II, mounted on a sturdy Gitzo 1325 tripod and Arca-Swiss Z1 ballhead. The zoom was set to 70mm, aperture was f/8. These are unprocessed images straight from Capture One 6.4.2. Yes, these were shot on a cloudy day.

The first 100% crop is the non-IS version. As good as it gets.

Image Stabilizer OFF

 And here is what happens if you turn IS on.

Image Stabilizer ON

The bottom line: if you are seeking ultimate image quality and as such shooting from a tripod, then shut IS off (unless you test your configuration for yourself and that test proves otherwise – newer lenses can behave differently). It will also save some battery power!

L is not Always Better

Canon 100mm f/2 USM, 50mm f/1.4 USM, 24mm f/2.8

My fully loaded camera bag is around 16kg (without the 500/4). So I started a “project” to reduce its weight substantially. The goal is to shave off 3kg. The other reason behind buying the non-L glass you see on the right was that I needed a lightweight travel kit. After contemplating a lot and considering even the Sony NEX-7 and the Fuji X-Pro 1, I had decided to go the most cost effective way: get some good primes for my 5D Mark II.

I had spent a weekend on reading reviews, analyzing resolution and distortion charts. And a strange thing started to materialize in front of my eyes. I’ve found three Canon primes that promised stellar image quality, low weight and low price tags. So I ordered the 24/2.8, 50/1.4 and 100/2 trio (of course with the optional lens hoods).

First arrived the 24mm (at the same day when Canon announced that this lens is discontinued and will be replaced with a much expensive IS version). I was surprised how sharp this lens was, blowing away my two L zooms that cover that range, and providing better center sharpness than the marvelous TS-E 24 II.

A few days later the 50mm arrived. Mounted it on the 5D II and compared it against my 24-70/2.8. It was no contest. The 24-70 was not even in the ballpark. Immediately replaced it with the 50, reducing my bag’s weight by about 600g.

The 100 produces much less shock than the other two. It is just a great lens (although I still prefer the color rendition of the 70-200/2.8 IS). Compared it with a friend’s 100/2.8 IS Macro, and at f/8, although less contrasty, it was on par with the macro lens (in the corners the little 100 produced better image quality).

These primes cost less together than a 24-105 f/4L lens and image quality at modest apertures (f/4-f/11) is much better in almost all aspects (avoid shooting towards the Sun with the 24…). Or to put it another way: I can break or otherwise ruin any of these three times to arrive at the price point of an L counterpart.