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Sonys' new A7(r) FX mirrorless


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#21 NWDiver

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Posted 21 October 2013 - 06:18 AM

Maybe these guys have it wrong but they are showing 1/160 for the A7r and 1/250 for the A7, I could not find it at Sony's site.

 

http://photographyli.../sony-a7-vs-a7r

This Guy Showing the Same

http://briansmith.co...a7r-field-test/


Edited by NWDiver, 21 October 2013 - 06:25 AM.


#22 FuAn

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Posted 21 October 2013 - 06:54 AM

Should be faster for the A7... The A7r will really only make sense if you are doing a lot of architecture, scenery stills... As soon as movement, more autofocus... Plays a role the A7 will be the better camera...

That's how I understood it from all the stuff I read...


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#23 rtrski

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Posted 23 October 2013 - 12:33 PM

Yeah, I also found it interesting that the A7r (higher megapixels) didn't have the hybrid PDAF, only the A7 did. 


Current rig: Sony SLT-alpha55 in Ikelite housing, Sigma 105mm f2.8 DC Macro w/ Ike 5505.58 flat port or Sigma 8-16mm f/4.5-5.6 DC HSM behind UWCamStuff custom 5" mini-dome. Dual INON z240 Type IVs triggered with DS51 for TTL mimicry, or DS51 alone with home-made ringflash assy for macro.

 

Topside, unhoused: Sony SLT-alpha99, Sigma 150-500mm + 1.4TC (Saving for Sony 70-400 G2), Sigma 15mm diagonal fish, Sony 24-70mm f2.8 CZ, Tamron 180mm f2.8 Macro...all the gear and nary a clue...


#24 Mark K

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Posted 25 October 2013 - 04:57 AM

Believe it or not...this is the Sony made housing for A7 A7r

https://www.facebook...&type=1


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#25 Mark K

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Posted 25 October 2013 - 05:00 AM

Local preorder quota are already full :lightbulb:


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#26 Phil Rudin

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Posted 25 October 2013 - 05:44 AM

Interesting that the Sony housing has mounting points for fiber optic cords. It does not appear that Sony has a small enough strobe that would fit the housing. It think a more likely price point would be 20,000. HKD.

I think an argument could be made for wanting to use both of the cameras underwater and it is nice to see that both the A7 and A7r will fit the same housing.

Edited by Phil Rudin, 25 October 2013 - 05:51 AM.


#27 tdphoto

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Posted 25 October 2013 - 08:41 AM

Hi,

 

The Sony housing looks similar to the Olympus housings, very clear signs of the technical cooperation between Sony and Olympus. 

The smallest strobe from sony for the Alpha cameras is the HVL-F20M, but i think also this is to big for the housing. Hopefully Sony brings also a small strobe for this housings.

 

Tino


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#28 rtrski

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Posted 25 October 2013 - 10:37 AM

waiting with bated breath. would love to use the nikonos 15mm with something like this.

 

as a current nex 7 user, my only concern is lens selection, which has been poor with Sony Mirrorless.

 

Still waiting for proper macro options...... doesnt look like a dedicated marco lens will be one of the first options for the FF system. We are still waiting for the 50mm zeiss macro for aps c. would love something longer. would love that i"m wrong

With all the metabones adaptors, the short flange distance of the E-mount permits a whole lot of lenses, although you might be forced to use many of them in crop mode.  BUT that doesn't mean any u/w housing port system would allow them, any more than the E-to-A-mount adaptor Sony provides would fit in a housing.

 

As I understand it right now the only 'full frame' E-mount lens is the new kit one for the A7, although there are some reports at sonyalpharumors that a few other E-mount lenses only vignette a small amount when shot in full-frame mode.   There's apparently a pretty robust release schedule planned for 2013/2014, but I wouldn't be surprised if housing manufacturers hold off a little bit in the meantime.

 

(I should clarify for the peanut gallery, there's nothing wrong with the E-mount diameter and flange distance for FF, just that all lens designs to date in that mount were for previously crop NEX cameras, so optically they didn't cover the whole image circle.)


Current rig: Sony SLT-alpha55 in Ikelite housing, Sigma 105mm f2.8 DC Macro w/ Ike 5505.58 flat port or Sigma 8-16mm f/4.5-5.6 DC HSM behind UWCamStuff custom 5" mini-dome. Dual INON z240 Type IVs triggered with DS51 for TTL mimicry, or DS51 alone with home-made ringflash assy for macro.

 

Topside, unhoused: Sony SLT-alpha99, Sigma 150-500mm + 1.4TC (Saving for Sony 70-400 G2), Sigma 15mm diagonal fish, Sony 24-70mm f2.8 CZ, Tamron 180mm f2.8 Macro...all the gear and nary a clue...


#29 jmauricio

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Posted 25 October 2013 - 01:07 PM

is that housing ad legit? seems very very fishy given flash issues. not even a port for electronic strobe connection?



#30 Phil Rudin

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Posted 25 October 2013 - 01:47 PM

Looks more like a Sea&Sea port design to me. The camera has an underwater mode and I suspect they had a plan for the fiber optic ports. Perhaps a LCD trigger like the one from Naudicam. At least Sony gave a little thought to U/W photographers perhaps that will carry over to lens development.

#31 Mark K

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Posted 27 October 2013 - 02:23 PM

Sony already has a housing ready to ship...here is the image leaked1379491_751147094911652_1567369589_n.jpg


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#32 Ryan

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Posted 29 October 2013 - 08:11 AM

Sony already has a housing ready to ship...here is the image leaked

 

Ready to ship?  I haven't seen any place to purchase online.


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#33 Alex_Mustard

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Posted 29 October 2013 - 08:34 AM

For me the interest in mirrorless is smaller cameras/systems. The problem with full frame mirror less is that you will still need just as big a dome port to get the best performance out of the wide angle lenses. 

I use a Zen 230 (9"+ dome) on my full frame camera - not because I want a big port - but because I need such a port for the best lens performance/image quality. A small mirror less housing is going to be a big cumbersome with a big dome for the full frame sensor.

 

I use a M43 mirror less camera in addition to my full frame SLR precisely because it is small and has a small, but high quality sensor. Quality is good enough for my current needs: http://www.nhm.ac.uk...gory=49&group=3

 

Not convinced in the benefit of full frame mirror less for UW.

 

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#34 Mark K

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Posted 30 October 2013 - 02:02 AM

just the weight benefit..and that is all


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#35 Mark K

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Posted 30 October 2013 - 02:05 AM

A7r must have better details...as comparing D800e vs D800. I was about the to order A7 but the quota was already full


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#36 pmooney

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Posted 30 October 2013 - 03:43 AM

just the weight benefit..and that is all

 

Its important to remember that the modern  base measurement of imaging has been reduced to comparisons of  resolution( acknowledging that not all pixels are equal ) , system size / weight  and image sharpness.  

 

As underwater imagemakers we tend to peep at the pixels / resolution / sharpness after the event ,  which is once all the bother and airport drama's of excess weight charges / expense's associated with  size and weight are forgotten.

 

Alex correctly points out the compromise ends up being about the needs of dome size to resolve the sharp corners we all desire vs the desire to manage  system budgets and baggage costs.


Edited by pmooney, 30 October 2013 - 03:45 AM.


#37 PeteAtkinson

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Posted 30 October 2013 - 05:31 PM

Perhaps Nauticam will make a housing and adapter for this to work with a Nikonos 15mm lens - which would be a handy size even if the corners are no better.



#38 Edward Lai

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Posted 31 October 2013 - 04:38 AM

A7r may be a pain to use underwater with the CDAF only.  Even the so-called FDAF or hybrid-AF on sensor don't prove to be as reliable as any mid-end DSLR at all.  I am not so excited yet until someone has dived with the camera(s) with a decent lens.


Edited by Edward Lai, 31 October 2013 - 04:39 AM.


#39 jmauricio

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Posted 31 October 2013 - 11:06 AM

Any reason why CDAF on a7r would be worse than the NEX series?

 

 I am not so excited yet until someone has dived with the camera(s) with a decent lens.

 

happy to be a guinea pig here should a housing materialize!?



#40 Aliens

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Posted 10 November 2013 - 05:48 PM

Maybe these guys have it wrong but they are showing 1/160 for the A7r and 1/250 for the A7, I could not find it at Sony's site.

 

http://photographyli.../sony-a7-vs-a7r

This Guy Showing the Same

http://briansmith.co...a7r-field-test/

Correct I got it wrong earlier. A7 is 1/250