FrancoisC Posted January 16 Share Posted January 16 Hi, I have an Olympus EM1 mkII with an Olympus 90mm macro lens. In a Nauticam housing with N85 Macro Port 120 dedicated part. Does anyone try this with the 1,4x teleconverter and N85 Extention Ring 17 (as specified in port chart) ? in which mode in the lens ? Normal, 2x (S-macro) ? Any input will be welcome 🙂 Link to comment Share on other sites More sharing options...
Chris Ross Posted January 17 Share Posted January 17 I have used the combination on land - I don't have the port for it to try UW. AF is slightly slower but works fine mostly and image quality seems fine. I shoot at f11 usually. I probably have some reasonable on land samples I could share. I think I recall 1 or 2 WP people mentioning they shoot with it UW, perhaps they will chime in. Here is a sample with the 2.0x: https://www.facebook.com/groups/wetpixeluw/posts/10158868336166017 Some people using the lens on this WP post: https://wetpixel.com/forums/index.php?/topic/70464-om-system-90mm-macro-announced/page/4/ Link to comment Share on other sites More sharing options...
FrancoisC Posted January 21 Author Share Posted January 21 Thanks Chris. not sure I will be able to do some tests, needing to find a 17mm extention ring... Anyway I have first to try to get some good results without TC. From my first tests (in pool), it seems a 1cm subject will fill the whole image in S-macro mode... Trip to Alor, Indonesia planned for June and weanwhile in fresh water at La Gravière du Fort, Alsace France. Will post images (If I can get good ones 🙂 ) Link to comment Share on other sites More sharing options...
bvanant Posted January 24 Share Posted January 24 Why shoot with the 1.4 rather than add a low power diopter on a flip? In my hands on the OM-1 using the Oly 1.4 tele autofocus is noticeably slower. I haven't tried it that way underwater (can't find any extension ring shorter than 22 mm) Bill Link to comment Share on other sites More sharing options...
FrancoisC Posted January 26 Author Share Posted January 26 Hi Bill. I tested with a Saga +10 and a Noodilab Moby, but with no benefits. Basically no better magnification, but very short working distance. I still have to test with my wife's Subsee+5 As previously written I already have to master the lens w/o additions... Link to comment Share on other sites More sharing options...
FrancoisC Posted February 2 Author Share Posted February 2 (edited) I have done some tests in the pool. Tested, Subsee +5, Saga +10, SMC1, Noodilab. Compared to X2 S-macro mode, I could get for some of them nearly same magnification, but in all cases with the cost of a reduce working distance. No benefit at all. A sample of result with the 90mm lens alone in X2 S-macro mode. Working distance is around 4-5 cm. This is the head of a Lego minifig. Width is around 10mm, filling the frame with no crop. Not so bad... null Edited February 2 by FrancoisC 1 Link to comment Share on other sites More sharing options...
Mathieu Cornillon Posted February 2 Share Posted February 2 I think her mascara is not waterproof… 3 Link to comment Share on other sites More sharing options...
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