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Anonymous
Guest
You can't be serious! :lol:
That was a beautiful flatworm, to be sure. But selling them? 8O
HD
That was a beautiful flatworm, to be sure. But selling them? 8O
HD
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Anonymous
Guest
Oh, I wanted to ask another question actually. What does "Nikkor 105mm f2.8 micro plus reversed 50mm f1.4" mean?
Does that mean you actually reversed a 50mm lens? How did you attach it? Is this a really stupid question and I'm amplifying my ignorance here?
(Won't be the last time- hehe)
HD
Does that mean you actually reversed a 50mm lens? How did you attach it? Is this a really stupid question and I'm amplifying my ignorance here?
(Won't be the last time- hehe)
HD
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Anonymous
Guest
You know what they say, there are no stupid questions, just a lot of inquisitive idiots
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Anonymous
Guest
So I take it you have no idea either?
If there weren’t whole threads devoted to eradicating flatworms, and they were a little larger, I think I could sell them. What a business model!
I read that you could attach a normal lens to a telephoto lens, so that the combo performed as a good quality closeup lens. So I decided to try it. I purchased an adaptor ring from B+H photo that has 52mm threads on both sides. I think it cost somewhere between 5 and $15. I mounted a 50mm prime lens on the front of the 105 mm micro lens. I then wedged a little piece of paper in the slot with the lever that controls the aperture, such that it always remains wide open (there must be a better way to do this). The end result is an unwieldy lens that has almost no depth of field and focuses about 3 cm away from the end of the lens. There is almost nothing in my aquarium that is that close—hence the flatworm study. It is very difficult to use. It causes my cheap tripod to vibrate. I have to stop the 105 mm lens down to about f45 to get any sort of depth of field. However, when in focus it takes pictures that look like they were taken through a dissecting microscope.
I tried the same thing with my Nikon 990 but had so success. Possibly because I was holding the prime lens rather than mounting it.
I have attached two photos taken with this combo. One is the test subject—a quarter. The other is a polyp on a leather coral under actinic light.
I read that you could attach a normal lens to a telephoto lens, so that the combo performed as a good quality closeup lens. So I decided to try it. I purchased an adaptor ring from B+H photo that has 52mm threads on both sides. I think it cost somewhere between 5 and $15. I mounted a 50mm prime lens on the front of the 105 mm micro lens. I then wedged a little piece of paper in the slot with the lever that controls the aperture, such that it always remains wide open (there must be a better way to do this). The end result is an unwieldy lens that has almost no depth of field and focuses about 3 cm away from the end of the lens. There is almost nothing in my aquarium that is that close—hence the flatworm study. It is very difficult to use. It causes my cheap tripod to vibrate. I have to stop the 105 mm lens down to about f45 to get any sort of depth of field. However, when in focus it takes pictures that look like they were taken through a dissecting microscope.
I tried the same thing with my Nikon 990 but had so success. Possibly because I was holding the prime lens rather than mounting it.
I have attached two photos taken with this combo. One is the test subject—a quarter. The other is a polyp on a leather coral under actinic light.
Attachments
I've also (back in the day of manual everything) just taped a backward 50mm lens to the body for a close up. It's tough to do with autofocus lenses. (okay, i can't get the thing to work at all!)
I used to have close up filters for the front of my lens. They're just a magnifying lens that has threads on it. You can get them used for under $15. I got a set of slip-ons that came +1, +2, +4 and you could stack them. to make +7
B
I used to have close up filters for the front of my lens. They're just a magnifying lens that has threads on it. You can get them used for under $15. I got a set of slip-ons that came +1, +2, +4 and you could stack them. to make +7
B
Bingo":34364nx5 said:
I just got a set of close-ups the other day and have been messing around with them. Can't focus on squat past 6" or so with them stacked to a +7, but the results are pretty good with what I was doing. the purple mushroom photo in its thread here (too lazy to dig the link
) was taken with the +7 stack. Not too shabby! I'll be editing up some more tonight or tomorrow and can get them online.-J
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