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| p.4 #1 · p.4 #1 · Hands-on: EF 200-400mm f/4L IS USM Extender 1.4X | |
So I picked up my 200-400 today, and it was the only one that my dealer got. My local dealer in the Seattle area is Kenmore Camera, and they have always been very good to me for early delivery if I pre order early. In this case I pre ordered over 26 months ago, right after the first development announcement came out. For me it is too soon for any images, but I though I would report on a few details I have observed so far.
As a small note, my lens has a serial number that is 04000002xx, where the xx is between 60 and 99, so this is likely in the first 300 or so lenses in the US. My guess is that the leading 04 is a batch that might be lenses sold in the US, and it would be interesting to know if the Canadian lenses have a different prefix. If we can see examples of approximate serial numbers as more lenses show up, we can get a rough idea of how many of these critters there are out there.
I ordered and recieved the Really Right Stuff replacement lens foot last week, which they call an LCF-53. It mounts easily by removing 4 screws, removing the Canon long foot, and then mounting the RRS replacement with the same 4 screws. Wth the RRS foot on, I have checked the front to back balance in a few conditions, and it looks like the RRS foot will work great for achieving balance on a gimbal head for every logical condition you would configure things. Here are my results:
1. Canon 200-400, zoom setting 200mm, hood on forward, camera Canon 1DX, no L bracket on camera. Balance point is right under the center of the switch plate on the side of the lens for reference for other foots. Balance point is 2.75 inches from the back end of the RRS foot, and 3.0 inches from the front.
2. Canon 200-400, zoom setting 200mm, hood on forward, Canon 2XIII extender mounted, camera Canon 1DX, no L bracket on camera. Balance point is 1.75 inches from the back of the RRS foot.
3. Canon 200-400, zoom setting 200mm, hood on forward, camera Canon 5D3, no L bracket on camera. Balance point is 2.5 inches from the back of the RRS foot. Still about 2.25 inches of the foot in front of the balance point.
In addition, I checked as to how much the balance point shifts when you zoom, and was supprised to see that it is only about a 0.2 inch shift to the rear when you zoom from 200 to 400. So that is a very minor amount, which will be nice for gimbal mounted use. The built in 1.4 extender moves in from the side, so it will have no effect on the front to back balance.
In comparing the RRS replacement foot to the Canon foot, the RRS puts the lens about 0.6 inches lower than if you put a multipurpose plate on the canon foot. So the RRS is an improvement, but not a drastic one. With the RRS foot on, I was easily able to adjust my Wimberley original version up and down to achieve balance in the other axis. There looks to be about another 0.8 inches of adjustment on the Wimberley, so a generic plate on the Canon foot would also likely work out.
In looking at what to get for a carry case for this lens, I found lots of references to the dimensions of the bare lens, but could not easily find the information on the hood size or the size of the lens and hood combination. So I made the following measurements:
1. Hood on facing forward, 1DX camera mounted: 22.5 inches front edge to back of 1DX eyepiece.
2. Hood reversed and stowed, 1DX camera mounted: 17.5 inches front of lens to back of 1DX eyepiece.
3. Hood diameter 5.75 inches excluding the mounting screw knob. Hood size across at back 6.3 inches from tip of screw knob to the far side of the hood. Hood length 5.7 inches front to back.
My general impressions for build and handling and all around cool factor are great so far, but obviously it is very early. I hope I can have more experience accumulated and a fair number of shots taken by tomorrow, but I have a lot of other things going on this weekend too.
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