>>3474703No, that's me who uses that type lens. The one used in
>>3474389 is a reversed, "Zeika Cine 6.5mm f/1.9 Wide Angle." Photo of that one is
>>3473326 That lens is originally a D-mount.
The one you posted the photo of looks like the reversed, "Tamron TV Zoom Lens 12.5mm - 75mm f/1.8" I used in most of the previous thread (pic related.) I put a ring on it so I can use the ring light, but I rarely use that now and prefer the light tube you see on top. To fit this lens onto a camera it just has a 49mm Reverse Ring that screws into the filter threads. The lens is originally a C-mount, but I took off most of the hardware so the rear lens could have more room. The cardboard thing on the lens is a lens hood with black flocking inside. It really helps reduce lens flares/glare.
Both lenses can have wicked lens flare and lighting issues because they are using the shortest focal length (6.5mm and 12.5mm). For the TV zoom lens, I can go up to 75mm and get some really good shots and have a moderate, but still somewhat short working distance.
If you can source a lens with filter threads, that means you can use it reversed using a Reverse Ring. Meaning ANY lens from ANY camera will work very easily as a macro lens. While this is true if you have a mount to mount adapter, the Reverse Rings are usually $3 or less on ebay.
One thing to keep in mind. short focal lengths reversed = super short working distances 10-20mm. That's fine if you can stalk living creatures easily enough or use a studio. You'll need to rig something DIY for better lighting.
>>3474932That mod looks like a normal camera lens with the microscope objective attached using a step-up or step-down ring or maybe a reverse ring. Or, if it is a full DIY job then they probably just attached something to a UV filter ring with the glass removed. Which I've done in the past for other stuff.
