Author Topic: Nex 3/5 comparisson test on SRL gear  (Read 9206 times)

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Offline REX (aka TG)

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Re: Nex 3/5 comparisson test on SRL gear
« Reply #1 on: May 11, 2010, 08:24:27 AM »
Thats a long but good read. There has been allot of hype about these 'Evil' cameras and now reading that I am somewhat disapointed.

The IQ and high ISO noise handling looks pretty good but with only two lenses availible when launched and having to manual focus A-Mount is a draw back to me.

Reading that hasnot inspired me to replace my trust G9 as a point and shoot.
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Offline REX (aka TG)

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Re: Nex 3/5 comparisson test on SRL gear
« Reply #2 on: May 11, 2010, 08:34:06 AM »
Also Nex 3/5 seams the end of A900 :)http://www.sonystyle.com.hk/ss/product/alpha/a900_e.jsp

They want to see how the people will wellcome the new cameras and according to the responce continue with a replacement of the a900 or never bring again a high end DSLR only mirrorless :)
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Offline REX (aka TG)

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Re: Nex 3/5 comparisson test on SRL gear
« Reply #3 on: May 11, 2010, 09:22:49 AM »
Autofocus System is what i was wishing
http://www.dynaxdigital.com/general-photography-talk/photography-technology-not-yet-invented/

"Sony NEX-5 Autofocus
 
25-Area AF. If the NEX-5's 25 focus areas (pictured above) don't provide enough positioning flexibility, you can switch to flexible spot mode, offering 187 possible positions that cover the frame, except for the extreme edges.
The Sony NEX-5 has a 25-area contrast-detect autofocus system, using the main imaging-sensor to determine focus, similar to how most Point & Shoot cameras work. There are three AF Area options: "Multi" mode, where the camera automatically selects the active area(s) for you, "Center", where only the single AF point at the center of the image frame is used, or "Flexible Spot" mode, where you specify the active area by selecting it with the 4-way controller. This last mode provides greater positioning accuracy and a smaller AF point, which can be placed anywhere within a 17 x 11 grid that fills most of the image frame, except for the extreme edges.

In addition, the NEX-5 offers a Face Detection function, capable of simultaneously locating up to eight individual faces. The face selected by the camera as being the main subject is outlined with an orange frame, and is then taken into account when focusing and metering. Each additional face that the camera finds is indicated on the display or electronic viewfinder with a white frame. Much like the Flexible Spot AF mode, you're not limited to the NEX-5's 25 autofocus points - the camera will lock focus on a face anywhere within the frame except for the extreme edges. It can also differentiate between the faces of adults and children, and while the NEX-5 can't recognize specific individuals' faces, it can at least prioritize either the kids, or the grown-ups. The Face Detection capability is also used to offer a Smile Shutter mode, which can automatically trip the shutter when at least one person in the image frame is smiling -- and the degree of smile that's required for the shutter to be tripped is adjustable in three steps.

The NEX-5 includes a bright orange AF assist illuminator adjacent to the Sony logo on its front panel, which can be very helpful with attaining a focus lock in poor ambient lighting, at least for nearby subjects. The same lamp also functions as an indicator for the camera's self-timer and smile shutter functions. If its use might prove distracting or objectionable, such as in a museum or place of worship, the AF illuminator can be disabled altogether. Note that even when disabled for AF assist, the lamp will still function for self-timer or smile shutter shooting, however.

Of course, the Sony NEX-5 also offers manual focusing - either as the sole focusing method, or for fine-tuning focus once AF is complete. In the manual focus modes, an option called MF assist optionally causes the camera to magnify the preview image by either 7x or 14x, whenever the focus ring is adjusted. The zoom level is adjusted by pressing a soft key, and MF assist preview is centered around either the user-selected focus point in Flexible Spot or Center modes, and around the AF point selected by the camera in Multi AF. (If more than one AF point is considered to be in focus, then the camera selects one of these points around which to base the preview, although we're not exactly sure what the criteria for choosing the center point is.) Given that Alpha (A-mount) lenses offer only manual focusing through the mount adaptor, MF Assist will prove doubly useful for owners of Alpha digital SLRs who want to share their glass between bodies. Of course, while the fly-by-wire E-mount lenses can tell the camera when focus is being adjusted, this isn't possible with A-mount glass, so the MF Assist function must be manually triggered when needed.

As we note elsewhere, the LCD on the NEX-5 is superb, with great contrast and an extremely high resolution of 921.6K dots. It's also generously sized, with a 3.0" diagonal, and can automatically account for ambient lighting to adjust its brightness. Add in its double-hinged tilt mechanism for shots overhead or low to the ground, and the NEX-5 becomes a joy for precise manual focusing, from most any angle.

As well as manual focus, Autofocus servo modes consist of single shot or continuous autofocus. In S-AF mode, focus is locked along with the exposure when the shutter button is half-pressed, and this behavior can't be changed. If you want to meter off one subject, but focus on a subject at a different distance, the only workarounds are to use continuous autofocus, or one of the manual focus modes. In continuous AF mode, the camera continuously cycles its AF system, which helps it track moving objects, keeping the current lens focal distance setting closer to the current subject distance than it might otherwise be. This can reduce AF "hunting" when it comes time to snap the actual shot. Because contrast-detect AF systems have to perturb the focus in order to tell whether the image is actually in focus or not, the NEX-5's Continuous-AF mode disturbs the viewfinder display on the LCD while it's operating. That is, the viewfinder image continuously shifts in and out of focus when C-AF is active, as the camera constantly re-checks its focus setting. This is a necessity for any contrast-detect AF system, but the amount of defocusing required by the NEX-5 is subjectively a little less than we've seen in some other systems. It does seem to vary by subject even with static scenes though, with some scenes provoking only a modest but frequent shuffling of the focus point, where other subjects prompt less frequent (but more dramatic) shifts in focus.

AF in Movie mode
In Movie mode, the NEX-5 offers a choice of either continuous autofocus, or manual focus, and appears to use multiple-point focusing. The AF system seems to respond more slowly to changes in subject distance, and to make the focus adjustment at a reduced rate compared to still-image shooting, but the AF operation is relatively smooth and for the most part free of the hunting that's seen with continuous AF in still image mode. Thanks to the aforementioned E-mount lens design, focus motor operation isn't picked up by the camera's internal microphone, making both autofocus and fly-by-wire manual focus a useful proposition. (You do have to be careful about handling noise while you're holding the camera, if adjusting focus manually, of course.).

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Offline winjeel

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Re: Nex 3/5 comparisson test on SRL gear
« Reply #4 on: May 11, 2010, 12:38:18 PM »
The A300 series could easily be mirrorless, now. That reminds me. Some time ago we discussed some of the more cynical aspects of technology development. Minolta users in the 1980's had to buy a whole new suite of lenses for the autofocus mount, as the MD lenses were of a different size and bayonet mount. Now, if the Nex cameras intend to replace the Sony A / Minolta AF mount, then we would need to replace our lenses again. Result, more money for Sony from those who want to stay with the pedigree.

However, at this time, it's a little hard to see that the Nex could replace the A900 level of camera. In fact, Canon and Nikon are having troubles catching up with the A900 still, after a couple of years after the release of it.

It seems that Sony is trying to get in on a niche market. Here in Japan, people love cute, and especially young ladies and families. They want something that's a little different, but they don't want to go for an unknown or lesser brand. So, it seems that the Nex is aiming for a particular market of having something a little different, a new style (even though the Olympus Pen had been there before), and being family oriented, without being as ostentatious as an SLR. That's my take on the Nex camera.
« Last Edit: May 11, 2010, 02:15:18 PM by winjeel »
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Offline REX (aka TG)

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Re: Nex 3/5 comparisson test on SRL gear
« Reply #5 on: May 11, 2010, 01:06:00 PM »
They will keep in production both systems DSLR and SLD (Mirrorless) but i think they will not introduce any DSLR like the a900. A850 will be the top model and if the market demand the replacement will come.

Some of the futures of the Nex model we will definitely have in the new DSLR they show us and now i think the replacement of a700 will be again a great camera.

Sony thinks
"if your primary use is the pictures then buy the new alpha generation DSLR cameras with HD video"
"If your primary use is video then buy the Nex e generation with variable aperture"

There are some alpha lens that are coming  SAL 500/ SAL 24 and it must be also a new DSLR camera.

Now i am waitting deep drop in prices of DSLR
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Re: Nex 3/5 comparisson test on SRL gear
« Reply #6 on: May 11, 2010, 02:17:45 PM »
Some good thinking. However, the A850 was never released in Japan. It's an overseas model. The current Japanese line up is the A900, A550, A500, A380, and A330 (no A450 either). That's a big gap in the home market.
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Offline Asher

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Re: Nex 3/5 comparisson test on SRL gear
« Reply #7 on: May 17, 2010, 09:23:51 PM »
Anyone know if the Sigma HSM lenses will autofocus with the adapter?

The 17-70mm F2.8-4 DC Macro OS HSM might be an interesting combination with the NEX cameras since it has OS too.
« Last Edit: May 17, 2010, 09:31:54 PM by Asher »

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Re: Nex 3/5 comparisson test on SRL gear
« Reply #8 on: May 17, 2010, 10:22:10 PM »
Anyone know if the Sigma HSM lenses will autofocus with the adapter?

The 17-70mm F2.8-4 DC Macro OS HSM might be an interesting combination with the NEX cameras since it has OS too.

I dont think its down to a particular brand of lenses, mainly they dont have the feautre to AF currently.  When and IF they release a firmware update to allow AF will we get details of what lenses work.
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Re: Nex 3/5 comparisson test on SRL gear
« Reply #9 on: May 17, 2010, 11:22:55 PM »
Amongst all the rumours and wish lists, you have to realise that high end DSLR users are a tiny fraction of the total camera market.... john
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Re: Nex 3/5 comparisson test on SRL gear
« Reply #10 on: May 18, 2010, 12:39:33 AM »
Two or three years ago, it was reported on NHK (the national news organisation) that here in Japan about 80% of households have an SLR camera. It doesn't specify film or digital nor it they're used or not. In the camera stores near me, the DSLRs are up the back of the store, but take up a substantial portion of the shop floor. However, that doesn't indicate much about which sector is the money makers, biggest sellers, or reflect actual use. What would be interesting is if we could find some global and regional statistics on camera ownership. Then, even more interesting, is the percent of sales of cameras, the Nex year. Sorry, couldn't help it. ;)
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Re: Nex 3/5 comparisson test on SRL gear
« Reply #11 on: May 18, 2010, 01:22:02 PM »
The Sony Japan website promotional videos: http://www.sony.jp/ichigan-e/pre_include/nex5nex3movie.html Even though the commentary is in Japanese, there's still things to see.

The video makes a point of good control of noise, HDR, smile detector, and other interesting features. You'll also see the Alpha lens adaptor, too.
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Offline jonjjl

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Re: Nex 3/5 comparisson test on SRL gear
« Reply #12 on: May 18, 2010, 01:26:09 PM »
Two or three years ago, it was reported on NHK (the national news organisation) that here in Japan about 80% of households have an SLR camera. It doesn't specify film or digital nor it they're used or not. In the camera stores near me, the DSLRs are up the back of the store, but take up a substantial portion of the shop floor. However, that doesn't indicate much about which sector is the money makers, biggest sellers, or reflect actual use. What would be interesting is if we could find some global and regional statistics on camera ownership. Then, even more interesting, is the percent of sales of cameras, the Nex year. Sorry, couldn't help it. ;)

That is interesting.  Maybe there is a little more truth in the sterotype of Japanese tourists always carrying around cameras with huge lenses attached :)
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Re: Nex 3/5 comparisson test on SRL gear
« Reply #13 on: May 19, 2010, 01:30:51 PM »
Two or three years ago, it was reported on NHK (the national news organisation) that here in Japan about 80% of households have an SLR camera. It doesn't specify film or digital nor it they're used or not. In the camera stores near me, the DSLRs are up the back of the store, but take up a substantial portion of the shop floor. However, that doesn't indicate much about which sector is the money makers, biggest sellers, or reflect actual use. What would be interesting is if we could find some global and regional statistics on camera ownership. Then, even more interesting, is the percent of sales of cameras, the Nex year. Sorry, couldn't help it. ;)

That is interesting.  Maybe there is a little more truth in the sterotype of Japanese tourists always carrying around cameras with huge lenses attached :)

That's funny. The Japanese say the same thing about foreign (Western / European) tourists visiting Japan. ;)
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Re: Nex 3/5 comparisson test on SRL gear
« Reply #14 on: May 19, 2010, 02:26:56 PM »
You crack me up with that comment. Japanese however are certainly the proud owners of the most 'exotic' camera's on the planet, there are some websites devoted to this.

I'm always amazed by these camera's purely made for the Japanese market. I own a TC-1 in silver but always craved for a black version but they are very hard to find .. unless of course you are in Japan, where the majority of the copies seem to have ended up.