Canon 20D & 10-22mm

If you could index it between the two images, the tripod mount socket hole would be best reference.

How about the view finder as a reference point. The hot shoe location is irrelevant. You can build up the base below the tripod mount. Maybe even lower it. If you look through the viewfinder through the back of the housing, do the buttons and dials still line up?

Does anyone have an idea of the coverage of the 10-22mm as compared to a Sigma 15mm Fisheye?

Here's a thought - I wonder if the 10-22 EF-S will work with the D60 and 10D.  The 18-55 EF-S can be made to work with the 10D with some user modification.  I don't recall Canon ever specifically saying the EF-S lenses in general won't be 10D compatible.

are there any sites that describe what these user mods are?

thanks,

Marty

I have been waiting for the 10D replacement (20D) to jump into the DSLR market and replace my G2. With the 20D body being so similar to the 10D, wouldn't the housing manufacturers have the housings available in short order?

Here's a thought - I wonder if the 10-22 EF-S will work with the D60 and 10D.  The 18-55 EF-S can be made to work with the 10D with some user modification.  I don't recall Canon ever specifically saying the EF-S lenses in general won't be 10D compatible.

Probably yes with a little hacking. See the link in this thread:

http://wetpixel.com/PNphpBB2-viewtopic-t-6155.phtml

Does anyone have an idea of the coverage of the 10-22mm as compared to a Sigma 15mm Fisheye?

The coverage is 107.5 degrees across the diagonal at 10mm on the surface. It's hard to figure out what the coverage of the 15mm Fisheye is with the dome port. My guess is the Fisheye will still be a little wider, but it's close.

With the 20D body being so similar to the 10D, wouldn't the housing manufacturers have the housings available in short order?

This is what I was excited about when the Mark II came out. Nearly identical to the 1DS/1D body layouts with just minor button changes. It seems for the most part that camera manufacturers have refined the ergonomics of the camers (at least with DSLR's). With the speed at which sensors and associated processors are upgraded it is not very cost effective for them to re-invent the wheel each time with regards to body frames when they upgrade the innerds. It would be a housing manufacturers worst nightmare to have to try and keep up with new camera body changes if they occured as often as sensor changes.

All in all good for the users.

Keith

now it is official including a new system flash (580EX). on dpreviews news page with a preview.

...With the speed at which sensors and associated processors are upgraded it is not very cost effective for them to re-invent the wheel each time with regards to body frames when they upgrade the innerds.

This is from the Luminous Landscape review:

"At first glace the 20D looks almost identical to the 10D. But in fact it has an entirely new chassis. For one thing, it is smaller and lighter. Approximately 3.5 oz lighter and some 13% smaller. Smaller in fact in every dimension. You really have to hold them side-by-side to see the differences, but when you do it's quite noticeable. It's not quite as small and light as the Digital Rebel, but the chassis of the 20D is magnesium alloy rather than polycarbonate."

Ok maybe Canon can afford to change the chassis each time...

I agree the increase to 8Mp is no big deal and not a tradeoff I prefer if the dynamic range is decreased. I suspect the decision is driven by marketing to tradeoff the dynamic range advantage they have over the Sony chips in the Nikon and others for more pixels which is an advantage that's eaiser to sell.

 

Who knows. Maybe they've improved their process and can maintain the same noise and dynamic range. In either case, it's only a 30% difference.

It looks like they've improved the sensor design and not just shrinked it. See the "First Look" review on imaging-resources:

http://www.imaging-resource.com/PRODS/E20D/E20DA.HTM

Very impressive!

Wow, looks like I couldn't be any more wrong about this one. Looks like a nice piece of hardware for the cost. Scratch that, it's just a nice piece of hardware all around.

Funny, but the last couple of cameras (20d and MkII) that Canon have released have by the specs seemed to be "incremental" upgrades when in reality they've been big steps forward.

Now let's see how long it is til everyone has housings. I'd think pretty quick once bodies are available, it's not a huge difference between this and the 10d...

I finally manage to get a housing for my 10D like last week - and now I find out it's obsolete and will therefore no longer shoot good pictures! :?

There's some sample pictures from the new camera here:

http://web.canon.jp/Imaging/eos20d/eos20d_sample-e.html

I just downloaded the fruit picture, and it looks sweet at 100% (shot through the ever-faithful 50mm 1.4)

Here's a quote from Rob Galbraith's review:

"External Speedlites whose names end in EX, including the 550EX and new 580EX, and the built-in flash, are controlled by E-TTL II. Older, non-EX Speedlites will not function in TTL or A-TTL on the 20D. The standard top flash sync speed is 1/250."

So I wonder what this means if you try to use a not 100% eTTL compatible strobe system (like the Matthias thingy or Aquatica's m-TTL system) - ie. it seems that a strobe system would truly have to mimic an EX-series speedlite to function.

In terms of those who asked about modifying the 18-55 EF-S, it's pretty easy - you just hacksaw off the protruding bit at the back and then glue some of it back on. There's little that can go wrong other than destruction of the camera's mirror, or ruining the lens. This technique is likely to work on the 10-22 EF-S also.

The 10-22 looks promising for the 1.6x chips, although I'd like to see someone modify it and get it working on a 10d / d60 / d30 before I tried it, especially at around $800. Interesting that they didn't make it work with 1.3x or FF. Sort of says to me that 1.3x isn't going to be around long (which was announced a while ago).

That tiny little nine-way controller (joystick) is going to give housing manufacturers fits. The only really importand UW controls on there seem to be focus pt selection at least - so some silver lining.

Cheers

James

No doubt about that James. It would be typical of Canon to let the user do something with custom functions to get around having to use it, so hopefully it won't be a stumbling block. If not, people will just have to continue to do the focus-recompose dance with this one just like many do with the previous versions.

That tiny little nine-way controller (joystick) is going to give housing manufacturers fits.

I would suggest a flat, circular collar that uses a set screw to hold on to the joystick tip, then a constellation of push buttons. It'll be a little ungainly, and may not be worth the trouble unless essential functions are associated with the stick, but I think it would be workable.

And as scorpio_fish hates set screws, it will give him a reason not to buy a 20D

Here's Thom Hogan's prediction for Nikon's next camera in this class:

Image a Nikon DSLR announced in February with the following specs:  

*10.4mp sensor  

* D100 body design/accessories  

* 1/500 flash sync and I-TTL  

* D70-like write speed (no large buffer really needed)  

* $1700  

(That, by the way, is my current prediction for the rumored D90 model.)

Now, if the camera is announced in Feb let's say it hits the shelves in April. That's a long time from now.

I like what one person called the Canon 20D - a Digital F100.

Cheers

James

Hello again,

just compared the 10-22mm EF-S to canons 16-34mm EF lens.

I couldn't find the max diameter of the EF-S glass but canon states

that both use 77mm filters and at some other sources state that both

lens should be very, very simliar.

Thern I checked Ikes statement on the 16-34mm lens and voila it

works in an dome port and with a special zoom clamp even zooming

is no issue....

Let's hope it workes out that way. If yes 300D and 20D owners

will have plenty of wideangle fun... :-)

Hi Christian,

10-22mm from dpreview: 83.5 x 89.8 mm (dia x len).

schöne Grüsse,

Julian

Julian,

thanks for the details.

If those turn out to be true it should be no problem....

Th 16-34mm EF has the same diameter and is supported by Ikelite:

http://consumer.usa.canon.com/ir/controlle...48&modelid=7487

My guess is we have a winner on board....

..und tschüß