Jump to content


Ryan

Member Since 22 Feb 2003
Offline Last Active Oct 06 2017 08:46 AM
-----

#388146 Introducing Nauticamís WACP - The Wide Angle Corrector Port: Discuss Here

Posted by Ryan on 04 October 2017 - 06:57 AM

I currently use Olympus EM5-MII, NA-EM5MII, Zen DP170-N120, Nauticam 60mm Extension with Panasonic 7-14mm 4.0. Acccording to your data, shown in Alex's review, the WWL-1 with kit zoom-lens would perform better than this combination.

 

=> is this true in real life?

=> would the new WACP even perform better?

=> where is the rest of the data available (e.g. also center performance)?

 

 

In these combinations, the kit lens + WWL-1 is so good that I'm not sure how much benefit is left to be realized with WACP.  In my personal opinion the real life benefits are greater than we can currently show in lab tests due to limits in our testing equipment and the extreme versatility and quality across the entire zoom range that WWL-1 offers.  Further testing might change my opinion on this with some unique larger diameter lenses on m4/3, but I can recommend WWL-1 without hesitation.

 

I love the splits from Jeremy and David, and really like the drama in the thick and flowing water lines that splits with small domes create.  They have a very different look, and that may not always be desirable, but appreciate the uniqueness and challenge to capture.  The o-rign sourcing for WWL-1 was actually driven by a request from Eric Cheng using RX100 for high frame rates i the Bahamas, and I think the first o-ring that worked was a YS-250 strobe battery compartment o-ring.

 

 

Here is another review on WWL-1: https://www.bluewate...l1-review-tests

 

The conclusion is the opposite to the recent Wetpixel review: WWL-1 is simpler to use with MFT and FF (Sony), but image quality is better with WW-lenses plus dome ports.

 

 

In my own experience this style of testing makes it really hard to get consistent, controlled results.  In my tests WWL-1 + 28mm was a bit narrower than the Sony 28mm + Fisheye Conv combo.  WWL-1 had soft corners, but they affected much less of the frame.  This isn't a completely fair test, the Sony fisheye behind a dome was wider, but given the choice between the two I would take WWL-1.

 

There are situations where a full frame fisheye lens (like Sigma 15mm or Canon 8-15) and a metabones adapter will be more appropriate than the WWL-1 combo because of its wider fov with great overall image quality.

Attached Images

  • Fullscreen_10_5_15__8_46_AM copy.jpg



#388070 Introducing Nauticamís WACP - The Wide Angle Corrector Port: Discuss Here

Posted by Ryan on 02 October 2017 - 06:00 AM

Is the Nauticam technology based on Alex's previous experiments with the Ivanoff-Rebikoff corrector, or is it a new concept? How proprietary is the technology?

 

No, not at all.  Ivanoff-Rebikoff is overly restricting in field of view in my opinion, and I'm glad that isn't the route we pursued.  Ivanoff is a corrective lens, WACP is a wide angle conversion and correction optic.

 

 

 

Can you explain how this concept differs from the older, (but still amazing) Nikonos RS concept.

 

RS 13mm is amazing, 170deg with fisheye distortion.  This is a very difficult focal length than anything paired with WACP will ever be, and also has much more barrel distortion.  I can certainly see how someone would want to travel with both...  

 

I can't imagine a situation in which I'd find the narrow field of view of RS 20-35 (which is actually a 24mm lens at its widest) useful.

 

Both of these RS lensers are purpose built, single use optics.  WACP is a wide angle conversion port (.36x magnification, converting 75 deg to 130 deg at its widest) for off the shelf lenses.

 

 

 

I recall the older zooms had a minimum focus distances of 0.5m or greater - the newer ones focus to ~ 0.38m. How close were you able to focus the lens behind the WACP in terms of working distance? Would newer (pro type - gold ring or L) zoom lenses be able to focus closer (with the WACP) as well as primes as they have closer focus limits?

 

All of the currently recommended combinations are focusing on the dome...

 

 

And my bonus question: any plan for a smaller WACP for APSC dslrs like the D500 or 7D serie?

 

This lens will actually perform better in terms of overall sharpness, and with a wider range of lenses, on APS-C.  The smaller formats have benefits...




#388021 Introducing Nauticamís WACP - The Wide Angle Corrector Port: Discuss Here

Posted by Ryan on 30 September 2017 - 08:48 AM

The current compatibility chart is available here:

https://drive.google...mIxR0dTY0E/view

 

WACP compatibility is still being determined, and this is not a complete list.  Updates will be continually as this product is brought to market in the coming weeks.

 

All of the current field testing is essentially to define the compatibility limits.  Stress testing, if you will.  Personally I expect some of the most popular prime options to be in the 35mm range for full frame, providing even better quality at a narrower field of view.  There may actually be two different use strategies that emerge, with prime lenses providing the very best quality at narrower field of views (35mm = 120deg, and even 50mm = 100 deg), and zoom lenses like 28-70 providing very good quality across a wide range of coverage angles.

 

Ian, this is both a wide angle conversion and correction lens.  It takes an existing lens, makes it wider, and works very hard to neutralize defects that are introduced by that action AND the air to water interface. 

 

Many solutions to the fuzzy corners problem were explored, including lenses that were simply correctors (without wide angle conversion) for current wide angle lenses.  This solution (wide angle conversion and correction for 75 degree fov primary lenses) turned out to yield the best mix of performance at a reasonable size and cost. 

 

I'm sure this is just the beginning, and I very much look forward to seeing what Nauticam and other manufacturers create.




#373483 Switching to optical sync. D810 continuous release with pop-up flash???

Posted by Ryan on 10 May 2016 - 01:54 PM

The OP is asking about what I consider to be a Nikon weakness, and that regardless of flash recycle time, you have to pull the trigger once for one frame when the flash is popped up.  In other words there is no such thing as continuous shooting mode when the internal flash is popped up.

 

This is one reason that manual led triggers have been created for some housings...  Pavel's TTL Converter is actually a very good manual trigger as well, I share his enthusiasm.




#373480 Nauticam WWL-1 Lens / Buoyancy Collar Review

Posted by Ryan on 10 May 2016 - 01:04 PM

There are some solutions coming in the next few weeks to improve access to the lens release button, and provide cover solutions, when the foam ring is attached.  I'll update this thread when I have them in hand.




#372610 Review of the new Nauticam wet wide angle lens WWL-1

Posted by Ryan on 14 April 2016 - 12:47 PM

I just noticed the request above for comparisons, and have these v. Panasonic 7-14 and Olympus 9-18.

 

https://www.evernote...i1CWuv-7CvNuimM

 

WWL-1 is significantly wider than both of these, with some barrel distortion.  Keep in mind the lens is full zoom through, and when you frame to match the fov offered by these two options a lot of the barrel distortion is cropped out in camera.




#368997 New Nauticam 29 port for Panasonic 14-42mm PZ could be a blast for 4K video s...

Posted by Ryan on 06 January 2016 - 06:01 AM

This combo does vignette at 12mm, but it is gone by the time you zoom out to 16mm.

 

Will the WWL work with the olympus 12 50 lens 'n the Nauticam N85 Macro Port /
will it vignate at the 12 end



#368995 Sony A 7 Sii with Nikonos 15mm for 4K

Posted by Ryan on 06 January 2016 - 05:42 AM

Our service staff made these.  TSA loves them.  I haven't heard real world reports, but bench tests indicate at least 3 hrs run time while recording video.

 

 

RPV_2345.jpeg?raw=1
 
RPV_2342.jpeg?raw=1



#365989 Relative low light and video capabilities of Nikon Cameras

Posted by Ryan on 07 October 2015 - 04:32 PM

Hi Tom,

 

If you want the best low light, high iso camera ever made by anybody I'd buy some variant of Sony A7S.

 

If you care about in camera UHD recording and in body image stabilization, buy this one:

http://www.sony.com/...meras/ilce-7sm2

 

and if you don't, buy this one:

http://www.sony.com/...cameras/ilce-7s

 

and one of these if you want to use your Nikon lenses (you'll set aperture on the adaptor)

http://www.bhphotovi...ml/prm/alsVwDtl




#365898 Tokina 10-17 overexposed at 10mm

Posted by Ryan on 05 October 2015 - 10:41 AM

I'd suggest getting the lens serviced.  My guess is that there is something mechanically wrong with the lens, or there is oil on the aperture blades, that is preventing them from closing during exposure.

 

You can test this further with DOF preview.




#364974 Canon 5D 16-35m2 lens and IKELITE question

Posted by Ryan on 05 September 2015 - 09:33 AM

http://reefphoto.com...roducts_id=6516




#364906 New Panasonic GX8

Posted by Ryan on 02 September 2015 - 10:57 AM

G7 has indeed been cancelled.  The issue, as speculated here, is the front - back depth of the hand grip.  The thick grip would have moved the N85 Port mount forward, affecting compatibility with all of the micro four thirds lenses supported, and necessitating a port system dedicated to the G7 housing.  

 

GX8 is no problem, and that high priority design is moving forward.




#363115 Olympus 7-14 mm f2.8 will not fit in Nauticam housings

Posted by Ryan on 11 July 2015 - 07:12 AM

They went for the previously speculated 30 mm extension on a dome port for the Pana 8 mm fisheye.

 

Undoubtly the Nauticam 4,33 mini dome with the 30 mm mini extension should also work.

 

This does "work", but there is vignetting from the lens shades at the top and bottom of the 4:3 frame, so it won't be the recommended option.  

 

The official recommendation for Olympus 8mm f/1.8 Pro will likely be 36048 140mm Glass Dome + a new 17mm extension, but these options are undergoing ongoing testing.

 




#363102 Mezzo Canale Shoal [Tuscany - Italy]

Posted by Ryan on 10 July 2015 - 03:00 PM

The diving looks amazing, and the housing feedback here is interesting.  

 

What is the water temp?

 

A7 definitely isn't the top choice for video shooting, but it is serviceable.  A7S is outstanding.

Sony has a 16-35 f/4 lens in the FE (full frame E-) mount that has been available for a few months, and works well in the 180mm glass dome.  This is actually one of the best wide rectilinear zooms I've used, and I am really impressed by the performance in the relatively small dome.  FF systems from Canon or Nikon typically require something much bigger...

 

I really like Sony's strategy with the "purpose" built models that use the same lenses, and go in the same housing.  A7, A7R, and A7S all use one housing, A7 II and (fingers crossed) A7R II should use another.  This allows me to have high resolution (A7R) and highly sensitive (A7S) bodies that I can use interchangeably, as needed, in one housing.  These have been my primary two travel cameras, using A7S for video and at night, and it has made flash obsolete.




#361320 Nauticam flextray not so good, alternatives?

Posted by Ryan on 19 May 2015 - 11:47 AM

HI Oskar,

I've sent you a PM, but it would be good to get a bit more info on the age of this system.  There was a known issue that caused something like this with some early handles.  It was corrected, dealer stock was replaced in those cases.  If this is that problem, it looks like yours was missed.

 

It is normal for the handles to have a bit of flex in them, which some people don't enjoy, and is amplified with heavy strobes or video lights.  The handle bracket has been added as an optional install to knock that out.

 

Moses, I wouldn't worry about the strengths of those the handle bolt attachment.  They brackets are optional, and something like 20 models used this tray prior to their being added.

 

Handle brackets were never offered for E-M5.  The mounting holes you see on the right grip are for an accessory hand strap, not a bracket.  I'm confident that once you get a current handle this won't happen again.