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7-14 mm with or without focus knob?

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#1 rollin

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Posted 27 November 2017 - 02:52 AM

I'm considering to buy the Panasonic 7-14mm for my GH-5 in Nauticam housing. For this lens, there are 2 ports, with or without focus knob

 

http://www.nauticam.com/product/36164/

http://www.nauticam.com/product/36133/

 

The advantages and disadvantages are obvious on the first sight.

 

+ manual focus

- price (port and gear, several 100's of $)

- more risk for leakage or damage

- more difficult to mount

 

Other things to consider? What would you do? I do mainly video. Thanks for all the advice.

 

Rollin


Edited by rollin, 27 November 2017 - 03:03 AM.


#2 Yako

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Posted 27 November 2017 - 04:44 AM

Nauticam options for Pana 7-14mm are: https://drive.google...TdLZzRIeXc/view

 

Then, two ports to do basically the same.   In two options, you need a focus gear,   For me is a costs question.

 

Option 1: with focus knob 

 

Port 31164-> https://www.onderwaterhuis.nl/nauticam-6-wide-angle-port-with-focus-knob-36164  --> 726€

Focus Gear 36043-->  https://www.onderwaterhuis.nl/nauticam-p714-f-focus-gear-for-panasonic-vario-7-14-36043 --> 213€

 
Total: 939€
 

Option 2: without focus knob 

 

Port 36133-> https://www.onderwat...onic-7-14-36133 --> 512€

Focus Gear 36044-->  https://www.onderwaterhuis.nl/nauticam-p714-z-zoom-gear-for-panasonic-vario-7-14mm-36044 --> 213€

 
Total: 725€
 
Saving 214€

 

Long time ago I had same question.  I went to option 2 and saved money...


Olympus OMD E-M1, Naticam housing, 2x S&S D1, Oly 60mm , 12-50mm & 12-40mm, Pana 8mm & 7-14mm

 

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#3 rollin

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Posted 27 November 2017 - 04:59 AM

Didn't know about this pdf, thanks!

 

Now, I'm confused. You need zoom gear for both, but only focus gear for the option 1, no? Does the port come with standard zoom gear then?

 

Edit: You made a mistake, you need two gears for option 1

 

http://www.nauticam....ct/set-up-b-39/

 

Option 1: with focus knob 

 

Port 31164-> https://www.onderwaterhuis.nl/nauticam-6-wide-angle-port-with-focus-knob-36164  --> 726€

Focus Gear 36043-->  https://www.onderwaterhuis.nl/nauticam-p714-f-focus-gear-for-panasonic-vario-7-14-36043 --> 213€

Zoom Gear 36044-->  https://www.onderwaterhuis.nl/nauticam-p714-z-zoom-gear-for-panasonic-vario-7-14mm-36044 --> 213€

 
Total: 1152 €                                         or 427€ difference

Edited by rollin, 27 November 2017 - 05:13 AM.


#4 Yako

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Posted 27 November 2017 - 05:15 AM

You need to differentiate between zoom gear and manual focus gear.

 

Nauticam comes with an integrated knob, normally used by zoom gear with zoom lens (i.e. Pana 7-14mm ...) and manual focus for prime lens (i.e. Oly 60mm) 

 

With Option 1 you could have zoom + manual focus, but for video , no sense to have manual focus gear, due to Pana 7-14mm focus fast in Wide angle...   

 

With Option 2 you could have zoom gear only,  but for video, I think it's enough. 

 
 
Then, for use Pana 7-14mm zoom capabilities, you need to buy, at least, zoom gear, that is not included in any option. :( .. 

 

 


Edited by Yako, 27 November 2017 - 05:18 AM.

Olympus OMD E-M1, Naticam housing, 2x S&S D1, Oly 60mm , 12-50mm & 12-40mm, Pana 8mm & 7-14mm

 

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#5 Yako

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Posted 27 November 2017 - 05:21 AM

Two gears in Option 1 are not mandatory,  Manual focus gear is a plus. but for me, in video usage, I don't know if it's is very useful.  

 

Pehaps is useful for the seller, due you need to pay 213€ more  :dancing:

....


Edited by Yako, 27 November 2017 - 05:22 AM.

Olympus OMD E-M1, Naticam housing, 2x S&S D1, Oly 60mm , 12-50mm & 12-40mm, Pana 8mm & 7-14mm

 

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#6 rollin

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Posted 27 November 2017 - 05:22 AM

Thank you for thinking along! In video, at least above the surface, one of the nice things to do is focus pulling, where you shift focus from background to foreground and vice versa. This is almost impossible in autofocus.

 

But maybe, focus pulling under water is too difficult. Has anyone tried with gear like this? Of course, I will use my tripod for this.


Edited by rollin, 27 November 2017 - 05:28 AM.


#7 SWink

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Posted 27 November 2017 - 11:09 AM

Rollin

 

My GH4 set up has the dome port with the focus knob.

 

I have the focus gear on the 12-35mm (which I find that I use very infrequenty) but not on the 7-14mm.

 

I don't miss not having the focus gear at all - the depth of field of the 7-14mm is so deep that I generally have no trouble at all finding focus (I always use back-button focus).

 

Cheers

Steve


My Video: Panasonic GH4, Nauticam Housing, 7-14mm, 12-35mm, 45mm, & Olypmus 14-42mm, 12-50mm 60mm. Archon W42VR x 2, Inon LF800-N
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#8 EspenB

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Posted 28 November 2017 - 05:15 AM

Forget polycarbonate domes (they scratch like hell) and go for the large and beatifull 180 mm glas dome with focus knop adapter.



#9 rollin

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Posted 28 November 2017 - 06:26 AM

This is indeed the best solution, buth 3x the price. Good if you do a lot of boat dives. I'm a shore diver, climbing down on steep rocks.

I have had a big scratch on my Seacam Superdome once. Very costly.

 

One can polish acrylic domes. But I agree, they scratch by just looking at them!



#10 hd_9

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Posted 28 November 2017 - 02:48 PM

I use Deepshots zoom gear for Pana 7-14mm and it works well.  Saves you some money over OEM.

https://deepshots.my...-7-14-zoom-gear



#11 JMartel

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Posted 01 December 2017 - 07:33 AM

I use Deepshots zoom gear for Pana 7-14mm and it works well.  Saves you some money over OEM.

https://deepshots.my...-7-14-zoom-gear

Or, even cheaper, 3D print your own. Find someone that has a printer, or use a printing service. Works great. I gave a friend $10 US to make it for me. I've also used him for a few other gears as well.

 

http://wetpixel.com/...showtopic=60536


Edited by JMartel, 01 December 2017 - 07:33 AM.