PIX 2015
Rooru S

Rooru S

Lives in Panama Panama City, Panama
Works as a Aircraft Mechanic/Pilot
Joined on Oct 5, 2010

Comments

Total: 552, showing: 1 – 20
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In reply to:

Petka: Medium format should not be defined by sensor dimensions anymore, but pixel resolution. If it is over 30 MPix, it is MF, if over 100 MPix, Large Format.

so DOF and FOV obtained from Medium Format cameras isn't a factor anymore? Medium fornat isn't all about resolution you know.

Direct link | Posted on Aug 27, 2015 at 11:39 UTC

unforeseen delay? Perhaps it is related to China's big explosion? Lots of companies had warehouses there.

Direct link | Posted on Aug 24, 2015 at 08:02 UTC as 6th comment
In reply to:

nikheat: Yes, but still no mirrorless A-mount!!!!!!!!!!!!!!!!!!

There are many benefits offered by a mirrorless A-mount body with the same specs as the a7Rm2 but without having to rely on adapters:
1. Current adapters aren't weathersealed and so far I don't think Sony will come with a weathersealed adapter
2. Adapters bring alignment errors. A native mount will always be calibrated (as long as you don't drop the camera or handle the camera properly, specially if you attach a big lens)
3. A dedicated mount will always be stronger than an adapter and it minimizes vibrations.
4. Current adapters aren't compatible with Sony Teleconverters SAL14TC and SAL20TC (you loose AF and Aperture Control) even if you use them on the SAL70200G2 or SAL300F28G2
5. Streamlined design, which also helps when dealing with dirt, rain, sand and other foreign objects at the moment you remove the lens. If you remove the lens+adapter, there is a higher risk of FOD getting into the sensor if you didn't clean the whole assy properly.

Direct link | Posted on Aug 24, 2015 at 05:47 UTC
In reply to:

nikheat: Yes, but still no mirrorless A-mount!!!!!!!!!!!!!!!!!!

@Macrobokeh
why would you want a mirrorless A-mount?

-- Because current E-mount cameras can't use Sony teleconverters with Sony G lenses like the SAL70200G2 or SAL300F28G2 (you loose AF and Aperture control
-- Because current E-mount cameras don't have AF-D.
-- Because current E-mount cameras don't illuminate the scene with the AF assist lamp in dark environments when using A-mount lenses
-- Because current A to E-mount adapters aren't weathersealed
-- Because some people don't want to deal with overheating or single card slots and would like to have a a99-style body with dual card slots and big controls.

Direct link | Posted on Aug 20, 2015 at 20:50 UTC
In reply to:

mick232: So a 2nd gen mirrorless AF system aready matches a 10th gen (D)SLR AF system... I guess there won't be any room for denial anymore when 3rd gen mirrorless AF systems are introduced.

First Gen was NEX-5. 2nd Gen was NEX-6 with their first version of Hybrid AF. 3rd Gen was ILCE-6000 with their latest Hybrid AF system. What you're looking at is the Fourth Generation. Not second. And I do believe DSLRs have stayed almost the same for several years so I doubt DSLRs are using a 10th gen AF system. Probably 5th generation.

Direct link | Posted on Aug 20, 2015 at 20:39 UTC

@Rishi Sanyal: Did you finally ask Sony engineers why E-mount cameras can't work with SAL14TC and SAL20TC with LA-EA adapters? Since Sony markets their mirrorless cameras as SLRs killers (See Sony Australia Mirrorless website) and it seems Sony is unwilling to put the same sensors and hardware on A-mount cameras, I'm having a hard time deciding to stay with Sony on the long run.

If you don't remember what I'm talking about, it is about the issue that as soon as you put a Sony teleconverter on the SAL70200G or SAL300F28G coupled to a E-mount camera with LA-EA adapters, you loose AF and Aperture control.

Direct link | Posted on Aug 20, 2015 at 17:11 UTC as 176th comment | 1 reply
On Sony reportedly shifting focus to full-frame cameras article (453 comments in total)

"As part of its marketing goals, Bae said Sony will increase its 'presence in the professional market such as photo studios and wedding photography.'"

So, Sony is still afraid of going face to face against the 1DX vs D4S. EDIT: I mean, in the sports category.

Direct link | Posted on Aug 3, 2015 at 21:15 UTC as 82nd comment | 2 replies

Aw...too bad. When I began reading this, I was like wow...this is a very nice camera module! Then I found out about the price. I don't mind having a module like this one but with 1 million ISO for "security surveillance purposes" at a lower price. Wildlife researchers would benefit from a camera like this one for sure.

Direct link | Posted on Jul 30, 2015 at 07:55 UTC as 92nd comment
In reply to:

kadardr: Let us just imagine in addition to the 24-35/f2 another like 40-80mm/f2 and another say 100-200mm/f2.4, all full frame. Would you need those? Would you need anything else? (OK maybe macros)

I would buy a 50-85mm F2 for sure. Or a 85-135mm F2... Sigma is capable of doing those crazy lenses!

Direct link | Posted on Jul 27, 2015 at 08:06 UTC
On The big beast: hands on with the Panasonic Lumix DMC-GX8 article (1250 comments in total)
In reply to:

Hero1: I have the GX7 and love it. Now I am thinking about this one and the Sony A7R II. I know that the A7R II is expensive but it's justified. I'll wait for the reviews and then make my move, but I am seriously interested in the Sony A7R II.

The A7R II has very good specs...but Sony Fullframe E-mount lenses are bigger than the lenses you're using on the GX7. And not all of them are THAT good.

Direct link | Posted on Jul 18, 2015 at 06:38 UTC
On The big beast: hands on with the Panasonic Lumix DMC-GX8 article (1250 comments in total)
In reply to:

deep7: Hundreds of strange comments on this news item! Yet few seem to be directed at the risky 20MP sensor. Weird.

It looks like a nicely designed camera which could be very comfortable to use (except it still has a sticky out viewfinder, which is awkward for stowage). However, the headline does make me wonder: is this really bigger than the GH4?? I find that hard to believe. Because, if not, the headline is pretty stupid...

@brownie314:
Sony Semiconductors department published some months ago a products list of what sensors they had available for sale. There was a 20Mpx sensor for m4/3 there (IMX269) and another one with 16Mpx. As seen on the website, that sensor is not BSI (Exmor).

Direct link | Posted on Jul 18, 2015 at 06:34 UTC
On Sony: An eye on focus article (763 comments in total)
In reply to:

Rooru S: Rishi, you totally neglected the fact that E-mount cameras aren't compatible with A-mount teleconverters when using G-series lenses (top of the Sony lineup) and LA-EA adapters.

what I'm trying to do is increase awareness of something that Sony is wrongdoing. They're promoting cameras that they say, can replace a DSLR or SLT (see Sony Australia mirrorless website) yet it can't do everything DSLRs and SLT already does. Meanwhile, Sony A-mount users are being neglected with no replacement for the a99.

Sony must either bring a fix to allow the usage of Sony TCs on LA-EA adapters and E-mount cameras with AF and aperture control (and all the bells and whistles of current A-mount cameras with features like AF-D Range) or bring a new set of Fullframe A-mount cameras equivalent to a7 series but with more fps in AF-C and all the features E-mount cameras don't have yet but that we can find on A-mount cameras and lenses.

Direct link | Posted on Jul 3, 2015 at 12:52 UTC
In reply to:

Rooru S: the Nikkor 500mm F4 is still cheaper than Sony 500mm F4. Sony must lower their prices!

@falconeyes
the 500/4 for A-mount was released in 2012 after almost 5 years of teasing and development. E-mount didn't take that long to develop. I think it took only a year. At the time, Sony was pushing A-mount heavily.

Direct link | Posted on Jul 2, 2015 at 15:19 UTC
On Sony: An eye on focus article (763 comments in total)
In reply to:

Rooru S: Rishi, you totally neglected the fact that E-mount cameras aren't compatible with A-mount teleconverters when using G-series lenses (top of the Sony lineup) and LA-EA adapters.

@steelhead3:

Sony likes to advertise E-mount cameras as the replacement for A-mount and DSLR cameras. But what they don't tell you is that there are several features that DSLRs/SLT have and that mirrorless for some reason don't have. So are those mirrorless truly DSLRs replacements or not? If they're not going to give us more A-mount cameras, I wouldn't mind if they gave us all the features package on their E-mount cameras, but they don't.

@abortabort:
have you used E-mount cameras with Sony TCs? I bet you don't.

Direct link | Posted on Jul 2, 2015 at 14:05 UTC
On Sony: An eye on focus article (763 comments in total)
In reply to:

ChrisH37: The native Eye tracking video is extremely impressive.

One of the big unanswered issues is what exactly is the situation with all that lovely screw mount Alpha glass? The 135mm 1.8 would be an amazing companion to the A7RII, but as far as I'm aware you would have to use the LA-EA4, which defeats the point somewhat.

The current 35/1.4ZA for FE is almost as big as the A-mount 135/1.8ZA

I can't imagine how big that lens would be in E-mount...

Direct link | Posted on Jul 2, 2015 at 13:58 UTC
On Sony: An eye on focus article (763 comments in total)
In reply to:

J A C S: How does this work in low light? What I see there is ISO 100, f/125, f/1.4. What about light requiring ISO 3200, 1/50, wide open, for example?

I'm quite sure he/she is asking that because all current mirrorless cameras with PDAFOS perform quite bad in low light compared to DSLRs, this happens with the a6000 and a7II. It seems the PDAF points can't work in low light because those points are smaller than those found in dedicated AF modules.

It is not bitching.

Direct link | Posted on Jul 2, 2015 at 13:56 UTC
On Sony: An eye on focus article (763 comments in total)

Rishi, you totally neglected the fact that E-mount cameras aren't compatible with A-mount teleconverters when using G-series lenses (top of the Sony lineup) and LA-EA adapters.

Direct link | Posted on Jul 2, 2015 at 13:38 UTC as 143rd comment | 6 replies

the Nikkor 500mm F4 is still cheaper than Sony 500mm F4. Sony must lower their prices!

Direct link | Posted on Jul 2, 2015 at 11:03 UTC as 25th comment | 3 replies

DPR team, did you ask him about the issue with G-series A-mount lenses + Sony Teleconverters when used together with LA-EA adapters on E-mount cameras?

Direct link | Posted on Jun 24, 2015 at 00:57 UTC as 20th comment
In reply to:

Rooru S: Hey DPR team, you know what you should do? A versus match between the best focusing mirrorless against the best focusing DSLRs.

The test should include the following. Tracking in the Z-axis (subject coming towards you). X-axis (panning) and low light focusing (night and indoors)

The lens of choice should be simple. If you're comparing A6000 with A77M2, you should use the SAL70200G2 in the A77M2 and the SEL70200G in the A6000. Or A7RM2 against D810 with similar lenses (native lenses only).

@brownie314:
But by how much will DSLR outperform mirrorless? What about recent releases (NX1, A6000, A7Rm2)? How good are they compared to DSLRs at the same price point? Have mirrorless closed the gap?

But it seems you prefer to leave those questions unanswered. That's why I said DPR should do a test comparing mirrorless and DSLRs in a real world environment with some targets moving at the same/similar speeds and in the same direction several times to see how good each camera performs.

Direct link | Posted on Jun 24, 2015 at 00:49 UTC
Total: 552, showing: 1 – 20
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