Architeuthis

Problem solved: I just saw the "edit" button to the right...😄

I just have put my Sony 90mm macro lens, Focus gear and the nauticam macroport in the marketplace... I listed the individual items and added the entire package (=cheaper) as a separate item. Now the sum shown is the individual items plus the package... => Nobody will have a closer look when seeing this false price... => How can I edit the announce and cancel the package? Thanks, Wolfgang

new price (shipping within EU included; no shipping to USA): Sony 90mm macro lens (new: 799 Euro): asking 400 Euro Focus gear (new: 220 Euro): asking 120 Euro Macroport 105 (new: 440 Euro): asking 260 Euro selling together as set for 740 Euro (preferred).

Item is available again (shipping to US turned out to be extremely difficult): 250 Euro, shipping within EU included (no shipping tp US)

You mean MFO-3 (or did you use MFO-1 with LX10)? I have MFO-3 and this diopter clearly improves IQ by reducing (the rather large) distance to medium size subjects (and decreasing focal length) and hence reducing the detoriating effect of water on IQ (Sony 100mm GM)...

This does not sound good, since distance to subject is greatly reduced by MFO-1 (I do not own MFO-1). Using the 1,4x TC seems to be the much better way to increase magnification to me (at least with Sony 100mm GM; with other lenses TCs might not be possible). Storytelling says that MFO-1 improves IQ (at least in theory), but I did not see a rigorous demonstration yet (e.g. testchards)...

Is it known whether the distance (front element (port or MFO-1, depending on usage) to object at 1.4x (both with and w/o) MFO-1 is the same?

This is an aspect that people who unrestrainedly use and recommend BBF (like myself) overlook: everybodies hands as well as the construction of camera houses are different and do not fit together always... 👍 My personal situation concerned, when I take/took my Nauticam housings (EM5II/EM1II/A7R5) UW into my hands, the dumb is aready sitting rigth an the BBF lever and the index finger touches the shutter. It could not be easier and more relaxed... But what about left handed, different anatomy of hands or different housing manufacturer? Using AF together with shutter release requires a fine sense of touch in the index finger and also some practice: I am sure I would produce an enormous number of failures by pressing incidentially the shutter too soon...

Ah, scientific documentation is a major goal... Then it very well might be that the choice of lenses is further narrowed - e.g. I am not sure that 180° fisheye is the right lens for this purpose. The Subal PPO with an excellent 16-35mm WA lens MAY BE the king here (but I do know nothing about UW archeology and optimum lens types)... => Better ask these UW archeologists which lenses are useful...

Here I have found an article by two very serious UW photographers about this issue (also available as video): Inside ScubaMastering Underwater Autofocus with Alex Mustard and Matt...Expert tips from Alex Mustard and Matthew Sullivan on mastering autofocus for underwater photography. Learn the best settings for macro and wide-angle.It seems even these guys have different preferences regarding this aspect (but I think what they say regards modern, up-to-date cameras)...

I am not sure that I am a "serious" UW photographer, but since I read about dumb focus in Alex Mustards book, years ago, I use it and it helps a lot. I should add that I always had Nauticam housings that have a special lever for it, just placed were the dumb of the right hand is located... Wolfgang

In my view (from someone who was owning Olympus MFT and is now using Sony FF), the difference in size and weight exists, but depends to a great extend on the type of lenses (there are differences between the FF mount systems; I cannot comment on APS-C systems, I never owned one and have zero overview there (also acryl ports or ports from other companies with comparable parameters will work, of course)): #1.: Fisheye w/wo zoom capability: Zen DP100 for MFT vs Nauticam140 (or similar) for FF. => MFT wins (Tokina 10-17mm fisheye with Metabones 0.7x speedbooster and Zen DP100; similar to Zuiko 8mm, that, however, has no zoom out capability)). I, personally was using the, optically superb, Canon 8-15mm with Nauticam 140 - almost no difference in size and weight then. #2.: WA wet lenses: work more or less on both MFT and FF (at present, Sony FF seems to have no WWL-C compatible lens and is the exception (WWL-C was developed for compact cameras; I am not sure about IQ on FF)). => No difference in practice. #3.: rectilinear WA: ZenDP170(or Nauticam180) vs Nauticam230 for FF. there are, however, exceptional lenses like Tamron 17-28mm that work very well behind DP170 (I have one, but almost never use it, since i use adapted canon 8-15mm fisheye with 2x Sony TC). In this case no difference to MFT. I do not know, whether this lens is available in Nikon Z, but Google does. => MFT wins (but not miles ahead); no difference compared with Tamron 17-28mm on FF. #4.: Intermediate focal range for fish portrait (normally seldom used): I am/was using Zuiko 12-40mm f/2.8 pro for MFT as well as Sony 20-70mm f/4 G behind Zen DP170. Both delivered excellent IQ. Now replaced by MFO-3 that also delivers very good IQ and is not flexible, but portability when travelling is so much better. => No difference #5.: Macro: here comes the really big difference: Macro rig with Zuiko 60mm or Panasonic 45mm extension (one can use the 45mm Nauticam port for both, 60mm needs an additional 20mm extension) is such a tiny and smart rig compared to the Nauticam rigs with Sony 90mm or, now, 100mm GM macrolens. In my MFT days the WA rigs (type #1, #3, #4) used to be the biggest and heaviest, while now the situation is reversed. The macro rig is the biggest and most monstrous rig I assemble with my Sony A7R5 (I use #1, #2 (WACP-C), #3 (I do not own a 230mm dome), #4). => Only type where MFT is a clear winner in my eyes (when focus is totally correct and no motion blurr, one gets excellent IQ in both systems (FF offers more postprocessing power, but this makes little difference in practice).

This item is sold now...