I found something that amazes me!
Jul 26, 2016 15:11:38 #
wingclui44
Loc: CT USA
Recently, I looked through my collection of old lens and glass, I picked up this silver Sony 20-8-mm f2.5 video camera lens from the storage box, I tried it reversed mounting on my Df with a 11mm extension tube, I don't believe the result. Here's the shots:
The first one: lens set at 80mm with 1.8x magnification.
Second one: lens set at 50mm with 3.2x magnification.
Third one: lens set at 20mm with 5.5x magnification.
The object was the 'logo' of a US 2 dollar bill. All shots were done by mounting the camera on a enlarger stand.
The first one: lens set at 80mm with 1.8x magnification.
Second one: lens set at 50mm with 3.2x magnification.
Third one: lens set at 20mm with 5.5x magnification.
The object was the 'logo' of a US 2 dollar bill. All shots were done by mounting the camera on a enlarger stand.
Jul 26, 2016 15:20:03 #
Jul 26, 2016 15:29:54 #
wingclui44
Loc: CT USA
SharpShooter wrote:
Does the treasury dept. have any openings?!?!
You'd be a good fit!!
SS
You'd be a good fit!!
SS
I am always collecting old lenses and loose optical glasses, I didn't buy them, some were given by friends, and some were picked up from discarded optical equipment while I was working in the hospital for 22 years. I am just loving to mess around with optical glasses, it's my another hobby.
Jul 26, 2016 15:32:55 #
Been nudger-ing my husband to get into storage So I can go through our (really) old photo equipment. Maybe this will give him added incentive.
Jul 26, 2016 16:24:53 #
This is an interesting idea. Consider posting similar photographs in the UHH True Macro-Photography Forum at http://www.uglyhedgehog.com/s-102-1.html .
A photo of your set-up would also be educational.
A photo of your set-up would also be educational.
Jul 26, 2016 16:50:43 #
Jul 26, 2016 17:51:56 #
wingclui44
Loc: CT USA
Nikonian72 wrote:
This is an interesting idea. Consider posting similar photographs in the UHH True Macro-Photography Forum at http://www.uglyhedgehog.com/s-102-1.html .
A photo of your set-up would also be educational.
A photo of your set-up would also be educational.
Thank you! I think posting this on the general forum will get more people to involve to create new idea. I also used some other collection to make telescope (of course small one), close-up lenses (achromat Diopter 7-9), it's just for experiencing and fun.
The set up is really simple, the filter size of the Sony lens is just the same as the popular 52mm of the Nikon lens. I just reversed mounted it to a manual 11mm extension tube (one part of the tube set, and I didn't want to use the other higher number one) with a reverse ring (Nikon mount), That's it. I mount the whole set up on an old enlarger stand with spot lighting on both side. focusing was not a problem, the lens gave me the working distance from almost 3" to 1". (80mm---20mm) but the DOF was so shallow, I had to use live- view to focus precisely. But it was a problem, after that I had to clean my sensor because of the sensor attracting dust during LV.
Jul 27, 2016 06:15:32 #
Jul 27, 2016 06:32:03 #
Jul 27, 2016 07:42:04 #
wingclui44 wrote:
Recently, I looked through my collection of old le... (show quote)
You have just shown that old glass can be as good or better than the new ones on the market. This may wake some up to realize that the newest offerings by lens makers are not necessarily the best options out there. I know that many of Nikon's best lenses were made up to 60 years ago.
Jul 27, 2016 08:26:41 #
Jul 27, 2016 10:46:20 #
wingclui44 wrote:
Recently, I looked through my collection of old le... (show quote)
Looks like you have a counterfeit there. LOL
Jul 27, 2016 10:49:38 #
Jul 27, 2016 12:28:13 #
I guess it proves that the industry has made excellent optics for a long time? Or am I missing something? Isn't it widely known that reverse mounting a lens on an extension tube produces large magnifications?
Jul 27, 2016 13:08:19 #
Leitz
Loc: Solms
cambriaman wrote:
Isn't it widely known that reverse mounting a lens on an extension tube produces large magnifications?
Perhaps less widely known is that many, if not most, otherwise mediocre lenses exhibit excellent optical quality when reversed.
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