Is it possible to get the same 2:1 magnification with a longer working distance?

Started 2 months ago | Questions thread
John K Veteran Member • Posts: 8,652
Re: Is it possible to get the same 2:1 magnification with a longer working distance?

JFishburn wrote:

Pretty proud of my results for my first macro session. Used a D5600 and an Oshiro 60mm 2:1 f2.8. It was only $100 brand new IIRC. Highly recommend it.

Anyway my question is, can I achieve this kind of frame filling, highly detailed 2:1 with a longer lens or some contraption (like extension tubes?) that will give me a longer effective focal length?

I love the detailed shots but I'd like to take the same kind of shots with hornets and things- maybe even vermin/rodent eyes- speaking of- it's been impossible this far to get cat eye closeups since they're so squirmy. Apart from spooky scary stingy insects posing a concern and insects that get spooked easily, it's also harder to control lighting what with how close I need to get or sometimes completely covering the subject.

The short answer is maybe. A teleconverter will increase the magnification without dropping the working distance, so at the same 2x mag you'll get a little more reach, but it's not going to be enough of a gain in working distance to really help.

You could also shoot at a lower mag and crop, or use a camera that has a smaller sensor (so that it's cropping the image circle that the lens is projecting). It's not the same as actually shooting at 2x though (cropping an image does not change the magnification).

Learn the habits and quirks of the critters you want to photograph and it will be easier to get the images that you want.

What you really need is to get your flash out toward the end of the lens so it's easier to light the scenes you want to shoot. I took this one at about 2x with a diffused macro twin flash. But a standard camera flash on a bracket will work really well.

Tech Specs: Canon 80D (F11, 1/250, ISO 200) + a Canon MP-E 65mm macro lens (set to roughly 2x) + a diffused MT-26EX RT (E-TTL metering). This is a single, uncropped, frame taken hand held.

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