Macro lens for 20D, but eventually full frame

Their have been a few posts im sure on what macro lens is best for canon users. I have read most of them but still a bit unsure. Most of the posts were somehwat older so i figured id ask again. I shoot a canon 20D right now and will for about the next year im sure but eventually will upgrade to a full frame 5D or whatever else canon may come out with in the next year or two. My question is which macro lens would be best. The 60mm will only work on the 20D and not full frame so it may not be worth getting if im planning on upgrading to full frame in the future. How do people feel about canons 50mm macro? Im also looking at the 100mm macro but I think i might want a bit more versatility and be able to shoot some large fish as well. Im not sure if the 100mm will allow me to do so. Im not against sigma glass either so any other suggestions regarding any other lenses are welcome.

And now onto the fisheye. Im really only looking at the 15mm fisheye from either canon or Sigma. I like the Tokina and have read great reviews, but again, it will only work on my current 20D so im not sure if its worth it. Please help, I always have troubles deciding on which lenses to get. Mahalo

Dan

The 60mm will only work on the 20D and not full frame so it may not be worth getting if im planning on upgrading to full frame in the future.

I am not sure that the future plan should be a major concern, meaning that if you get the full frame down the road there will be alot of expense (new body, new housing, etc.) Right now the 60mm can be had for a relative song in the grand scheme of scuba diving costs and photo costs. About $360 on amazon, plus the cost of the port. You can probably always sell it even for 1/2 that and think of it is as a semi-rental. You may even keep the old rig as a backup and/or want a smaller body for carrying around without as much size.

Again, just my opinion and how I look at things. Of course if you are going to buy a full frame within the real near term it could change things. But since you live in a place where you can dive alot (so it seems) you may be missing out on shots and growing with the system you have. As to whether the 60mm is worth it, I cannot say for sure (guess you looked at the other posts about it, and the opinions) I just started playing with mine above water and will be taking it below in the near future.

I am not sure that the future plan should be a major concern, meaning that if you get the full frame down the road there will be alot of expense (new body, new housing, etc.) Right now the 60mm can be had for a relative song in the grand scheme of scuba diving costs and photo costs. About $360 on amazon, plus the cost of the port. You can probably always sell it even for 1/2 that and think of it is as a semi-rental. You may even keep the old rig as a backup and/or want a smaller body for carrying around without as much size.

 

Again, just my opinion and how I look at things. Of course if you are going to buy a full frame within the real near term it could change things. But since you live in a place where you can dive alot (so it seems) you may be missing out on shots and growing with the system you have. As to whether the 60mm is worth it, I cannot say for sure (guess you looked at the other posts about it, and the opinions) I just started playing with mine above water and will be taking it below in the near future.

You have a good point. I guess I could always sell the 60mm, plus I probably will keep the 20D as a backup. Although im also looking at the 50mm 2.8, which will work on the full frame as well. hmmm, I'll have to keep thining and researching.

I'm selling my own Canon 50mm macro (+ the 1:1 adapter) and keeping the 60 (=12mm extension tube MkII) for full frame use - which probably tells you a lot about which lens I'd go for!!! I'd rate the 50 as a land lens where its viable with its 1:1 extender, but not as an underwater lens - its mechanics and design parameters show their age - though its optically excellent.

The Sigma 70 mm F/2.8 works very well in my FF set-up.