I thought I'd post some pics I took tonight messing with my new extension tube set. First, I don't mean to come off like I know what the heck I'm doing. I've read some other posts on extension tubes and it didn't really sink in until I started playing. The thing I'm understanding now is that extension tubes don't bring a subject closer (like a zoom), but they allow you to bring the lens closer to the subject and still be able to focus. This subject is a fan thingy (technical term) growing out of my Banana Boom Chalice. It's maybe 3" past the front glass of my tank. What I did was see how close I could get and still focus using
1- My 100 mm Macro lens
fan by Peter Young, on Flickr
2- same lens with 12 mm extension tube
fan12mm by Peter Young, on Flickr
3-now with 20 mm extension tube
fan20mm by Peter Young, on Flickr
4- 36 mm extension tube
fan36mm by Peter Young, on Flickr
5- and finally all 3 extension tubes stacked.
fan12+20+3636mm by Peter Young, on Flickr
Just thought I'd give a visual for anyone interested or who thought about using them. They allow for much finer shots of close up, if the subject is in reach. Doesn't help you get close ups of that sweet coral at the back of the tank, but useful for close up stuff. All these shots were using the same set up, ISO 400, F13
1- My 100 mm Macro lens
fan by Peter Young, on Flickr
2- same lens with 12 mm extension tube
fan12mm by Peter Young, on Flickr
3-now with 20 mm extension tube
fan20mm by Peter Young, on Flickr
4- 36 mm extension tube
fan36mm by Peter Young, on Flickr
5- and finally all 3 extension tubes stacked.
fan12+20+3636mm by Peter Young, on Flickr
Just thought I'd give a visual for anyone interested or who thought about using them. They allow for much finer shots of close up, if the subject is in reach. Doesn't help you get close ups of that sweet coral at the back of the tank, but useful for close up stuff. All these shots were using the same set up, ISO 400, F13