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Interceptor121

Member Since 25 Jun 2011
Offline Last Active Yesterday, 03:01 AM
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#373199 RX100 ii vs. RX100 iV / V

Posted by Interceptor121 on 02 May 2016 - 05:04 AM

You can see a 4K video I shot in Puerto Galera. The mark II gives you better options for still images the video you can see by yourself. 4K is more a consideration if you have a 4K set and if you are keen on video. For Lembeh macro you really want the Mark II longer lens and that will be fine for stills. In both places it is pretty dark and 4K is not that good at high ISO


#372438 Problem using Nauticam CMC-1

Posted by Interceptor121 on 10 April 2016 - 04:13 AM

Thank you all for your help on this. I may need a bit more help from you to explain some terms. I am just beginning and do not fully understand all the technical terms (focal length, focus distance, etc). I will get there but just need a little bit more help :-)

 

Here is what I understood:

- The reflection was caused by the position of the strobe. 

- The vignette is seen because I did not have enough zoom in to get a tiny detail of the large nudibranch or the nudibranch was too large to have it in full using the CMC

I understand this and I am very grateful for the explanations you sent, thank you.

 

Here is where I need more help from you:

- What does the minimum focus distance mean vs. the use of the zoom? It is 10mm without CMC and 59 mm with CMC. Does it mean I can get the same level of details with the CMC being a bit further away from the subject, at 59mm? Does this distance imply using the zoom or not? I just tried and I can be closer that 59 mm with the CMC with a zoom in.

- 19mm frame width using CMC: does it mean that any subject larger than 19mm will not fit entirely in the frame? Is this distance using the zoom or not? Without the CMC, it can get to 30mm which I also do not get since I can easily fit a shark in the frame. I assume this is therefore implying using the maximum zoom in?

 

Here are the details of the pictures I posted above:

- xeno crab: focal length = 9.89 mm

- shrimp: focal length = 9.89 mm

- nudibranch: = 7.59 mm

 

Apologies for my ignorance and all my questions! I am very keen to understand all this as this is the only way I will understand how to best use my equipment.

 

Once again, many many thanks for your patience and time!

 

Helene

 

Your lens is zoomed out. The G16 range is 6.1-30.5 you are at the wide end close to the vignetting point. Closer to the black vignette the lens has another glass area not clear it is likely this is your reflection.

Because you are not zoomed out the camera working distance is around 1cm so to go further away you need to zoom fully.

 

Frame width 19mm means anything bigger will not fit the frame

 

In short I do not know who advised you to get the CMC for the majority of subjects you will achieve less than the traditional macro frame width of 35mm with a single Inon UCL-165 so unless you live in pygmy seahorse land the CMC will be too much for you and a weaker lens could have been sufficient.




#372390 NEW Panasonic GX85 Announced

Posted by Interceptor121 on 09 April 2016 - 12:57 AM

Sync speed is limited by the mechanical shutter an external bulk head will not change things.

All those cameras with 16Mp sensor have the same sensor of the GX7 including: LX100, G7, GX85 etc. The only camera with a different one is the GX8 and it does not look like the extra megapixels improve the resolution




#372176 Recommend a lens/port for CFWA on m4/3?

Posted by Interceptor121 on 03 April 2016 - 11:38 PM

I agree the 3.5" is a 'specialist' port. Personally with the type of images I shoot I have not yet found something that would not work with the 4.33" but is down to your subjects


#371830 New Nauticam 29 port for Panasonic 14-42mm PZ could be a blast for 4K video s...

Posted by Interceptor121 on 23 March 2016 - 10:20 AM

The flip diopter carries any standard M67 close up lens. It works best with the CMC because the rear lens protrudes, with other there is a little gap to the port




#371612 Sony RX100 IV vs Panasonic LX100

Posted by Interceptor121 on 16 March 2016 - 01:21 PM

The Mark IV has video profiles that the III does not have the ability to have more dynamic range is worth the upgrade

 

I also shoot ambient light WA with the Sony and never had an issue

 




#371600 Sony RX100 IV vs Panasonic LX100

Posted by Interceptor121 on 16 March 2016 - 06:23 AM

If your key objective is video get the RX100 the HD mode at 50 mbps is great and frankly i cant tell much of a difference between 4K unless sitting right in front of the screen


#371457 Coconut 'mimic' octopus

Posted by Interceptor121 on 12 March 2016 - 02:40 PM

Sorry it has taken me some time including frying my computer to produce the 4K files!

 

 

I think Youtube is still digesting the file as it is just coming out at 360p but the HD and 4K should arrive soon 

 

The behaviour is around 2:40 in the clip afterwards there are other strange moves of the octopus

 

Conditions were shocking and I did not have my tripod legs so a bit shaky apologies!




#371243 Photos from my Purto Galera trip Feb 2016

Posted by Interceptor121 on 07 March 2016 - 02:24 AM

I was at Fishermens Cove that I warmly recommend

 

Conditions shocking vis 3 meters and rain for most of the times, regardless some interesting encounters

 

25210620959_84d30fe199_b.jpgWhats' up by Interceptor121, on Flickr

 

24947666974_cbd1343988_b.jpgCareful I am dangerous by Interceptor121, on Flickr

 

25459641412_b539cc86bc_b.jpgBlue contour by Interceptor121, on Flickr

 

25282715610_e90cacd47e_b.jpgTranslucent by Interceptor121, on Flickr

 

25214161479_4a80478769_b.jpgYum! by Interceptor121, on Flickr

 

24951222464_aaa9bfc428_b.jpgNot mating! by Interceptor121, on Flickr

 

25214193399_480b59ca82_b.jpgDuo by Interceptor121, on Flickr

 

25555619466_d379da095c_b.jpgCan  you spot the third? by Interceptor121, on Flickr

 

And to finish a funny non diving one

 

24951290084_02e74d3758_b.jpgNo Smoking! by Interceptor121, on Flickr




#370164 New Nauticam 29 port for Panasonic 14-42mm PZ could be a blast for 4K video s...

Posted by Interceptor121 on 06 February 2016 - 01:35 AM

Those are the 14-42mm tests with the Inon 6,10 and 12 stacked
Panasonic Lumix G X Vario 14-42mm / F3.5 – 5.6 / Power OIS and Nauticam Macro Port 35 | Interceptor121 Underwater Photo & Video Blog
http://interceptor12...-macro-port-35/
The tests were with the power zoom and I then ran them with the mega OIS without major differences. The single Inon covers 42mm width, you need the 10 to go below the 36mm and so on


#369885 High CRI video lights for macro work

Posted by Interceptor121 on 31 January 2016 - 07:45 AM

I have no idea but if you buy 2000-4000 lumens dim them or you will have fried fish


#369391 Wide/fisheye lens and housing for the RX100 mk IV?

Posted by Interceptor121 on 17 January 2016 - 09:09 AM

my comments were for video. You can't really use a dome as the RX100 don't white balance and you need a push on filter

 

For stills you can try. Split shots are difficult with a compact and a small dome plus you need to seal the wet lens




#369102 New Nauticam 29 port for Panasonic 14-42mm PZ could be a blast for 4K video s...

Posted by Interceptor121 on 09 January 2016 - 10:21 AM

Generally worse as the 12-50mm sits further away from the glass and optical quality is worse than the 14-42mm Panasonic. The pana lens has a focus ring so it would need a knob. Having said that the autofocus works pretty well and you can always focus lock on something and then move the camera.


#368791 New Nauticam 29 port for Panasonic 14-42mm PZ could be a blast for 4K video s...

Posted by Interceptor121 on 01 January 2016 - 03:29 AM

There is a part 83215 that allows the bayonet system on the macro port m77 36131. Vignetting varies the wet lens is optimised for use at 28mm equivalent


#368649 Nauticam NA-RX100IV flooding

Posted by Interceptor121 on 27 December 2015 - 05:15 AM

You don't need to go down to 20 meters or take the housing for a dive empty that is just a legend. If there is a leak you can find out after half hour in a bucket I would not waste a dive like that

 

The benefit of vacuum systems is that they make all those procedures obsolete. The RX100 costs nearly $1,000 it is not the camera I would take in a cheap housing. The Nauticam housing is $995 I can't see how you would not spend money for the vacuum valve

If you don't want to spend $220 for the M14 OEM valve you can get the valve only from a third party for another $100 you have a vacuum system that is the best insurance for your rig and will eliminate a number of issues including changing batteries on a small boat