Rock and Rollei wrote:
I sold my original 5D 13 years ago, but back then I used the following lenses onit:
Canon 15mm f2.8 Fisheye - loved that lens. Very sharp and ideal if you want a diagonal fisheye
Canon 20-35 f2.8 L - my late film era uktrawide - was generally happy with it, but I dropped it...
Canon 17-40 f4 L - never very happy with it, but OK if well stopped down.
Sigma EX HSM 12-24 - as wide as it got at the time, not perfect, but generally I liked it better than the 17-40. I had bought this for APS-C, but it covers full frame. Still have it and still use it sometimes...
Canon 28-135 IS USM - not L level, but fairly reasonable
Canon 24-105 f4L - bought it soon after the 5D at launch of the lens. A bit poor at 24mm wide open, and I had to have the aperture cable and IS unit replaced, but probably my most-used lens for a decade.
Sigma EX HSM 70-200 f2.8 - a little soft wide open, but close to the performance of the Canon equivalent after that.
Canon 28mm f2 8 - the first one. Horrible scratchy AF motor, but decent otherwise.
Canon 35mm f2 - the first one. Very small lens, pretty sharp stopped down a bit.
Canon 50mm f1.4 - quite an old-fashioned lens, soft wide open but pretty sharp from f2 or f2.2, and I liked both attributes.
Canon 50mm f2 5 Compact Macro - Canon's sharpest EF 50, horrible lAF motor but fantastic lens.
Canon 85mm f1.8 - classic lens for a classic camera.
Canon 100mm f2.8 USM Macro - sharp, quiet, great prime option.
Canon 135mm f2.8 SF - everyone always praises the f2 L, and rightly so, but this lens is cheap and great, even if you never use the soft focus function
Canon 200mm f2 8L - mines the Mk I. Excellent lens.
Canon 300mm f4 L - the non-IS version, very sharp.
What would I recommend?
For ultrawide, the latest lenses really are the greatest. The previous f2.8 L lenses all have their weaknesses and I wouldn't recommend any of them. The 16-35 f2.8 L IiII is magnificent, but pricy. The 16-35 f4 L IS is the very best option. 17-40 f4 L probably the best budget option, but...
Standard zoom, the 24-105 is OK either version, the 24-70 f4 L a fair bit better.
Tele zoom, unless you really need f2.8, then a 70-200 f4 L - the non-IS is very cheap, the IS very decent.
Some of those old primes I mentioned can be very cheap, and are a lot of fun, but the 40mm you already have is sharp and tiny.
Nice walkthrough of the EF lenses that were popular over the last decade and a half. Agree with your comments on the ones I have owned (24-70mm f/4, 85mm f/1.8) but disagree on the 100mm f/2.8 macro USM. I just bought one and I am waiting on a return authorization as we speak. The latest L version seemed much better in my local store - but I only had it on the camera for a few minutes. The problems on the one I am returning could be sample variation or just an old lens with quality problems that developed over time. Buying older equipment used can be a little time consuming and frustrating.