forpetessake

forpetessake

Lives in United States Transylvania, United States
Works as a exorcist
Joined on Oct 3, 2011
About me:

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Comments

Total: 529, showing: 361 – 380
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In reply to:

Anfernee Cheang: I don't mind if you make it 50% thicker but with F2.0 aperture Sony. We need more fast lenses. The 35/1.8 and the upcoming 85/1.8 are definitely better idea.

And also we need more premium lenses like 16-50/2.8 and 50-150/2.8. I am still in the transition from single Alpha body to double E bodies, with the issue that my 16-50/2.8 SSM and 70300G do not have any nice replacement... That's really a painful long wait.

Especially, taking into account that one can take a 24-70 f/2.8 lens, add Metabones adapter and get 16-50 f/2.0 lens the same size as Sony's 16-50/2.8. All that talk about too large, too heavy, too expensive is a complete hogwash, not any larger, nor heavier, nor more expensive to manufacture than equivalent FF lenses.

Direct link | Posted on Jan 23, 2013 at 06:43 UTC
In reply to:

RedDog Steve: Absolutely wonderful news !
I'm tickled pink.
This puts us just a bit closer to having a Universal Mount.

I don't care if these are lower tier companies or specialized products, next step is to add another "Major" player, PENTAX are you listening ?

rd

What good is a mount if it won't work for bigger sensors?

Direct link | Posted on Jan 22, 2013 at 08:14 UTC
In reply to:

rocklobster: I remember the time when all the sceptics were saying the M4/3 would not last -an opinion based largely on the relatively poor noise performance of early cameras such as the G1 and E-P1. Early adoptees who bought a collection of lenses would be really celebrating now.

Cheers

And it still goes nowhere, m43 has no future. The trend is toward bigger sensors, not smaller. Wait and see when Sony or Fuji release FF mirrorless, that will be a whole new game.

Direct link | Posted on Jan 22, 2013 at 08:10 UTC

Absolutely irrelevant. The camera world goes where Canon/Nikon/Fuji/Sony takes it.

Direct link | Posted on Jan 22, 2013 at 08:03 UTC as 16th comment | 7 replies
In reply to:

Oery: so now they can sell their product under "Kodak" name, not "Kodax, Koddak or Kobak"
good job.....

Yes, it's much better than Sorny or Panaphonic :-)

Direct link | Posted on Jan 21, 2013 at 01:45 UTC

Kodak, ThinkPad, Jeep -- such wonderful Chinese names. Chinese Communist Party can be proud of such achievements, as their ideological teachers used to say: Capitalism will gladly sell the rope used to hang itself.

Direct link | Posted on Jan 20, 2013 at 04:25 UTC as 19th comment | 6 replies

In the final analysis what it means is that APS-C and m4/3 lens manufacturers have no excuse creating lenses same size as FF but faster proportionally to the crop size. If the typical f/3.5-5.6 zooms were ok on FF, the APS-C typical zooms should be f/2.3-3.7 and m4/3 should be f/1.7-2.8 to collect the same light on smaller surface. Why do Olympus/Panasonic/Sony produce those terribly slow APS-C/m43 lenses instead?

Direct link | Posted on Jan 15, 2013 at 19:41 UTC as 40th comment | 6 replies
In reply to:

a1man: Does the increased sharpness mean need for more resolution? They will now justify 54mp nex7!

One more question, with another adapter, is it possible to get even more light and sharpness if used with a medium format lens? Medium format lens on a nex body would look very funny :)

The resolution only can be increased if the adapter were ideal. The FOV of lens is reduced, so lens contributes less, but the adapter glass more, and it's likely to be limited by the final elements. If you look at the FF lenses and the best m4/3 lenses, both have pretty much the same peak resolution 50-80 l/mm.

Direct link | Posted on Jan 15, 2013 at 19:26 UTC
In reply to:

Tom Caldwell: What planet is Canon on? They could have done the same thing on a new body with an evf and called it an "EOS-M". Maybe they are no longer clever enough?

If you think it's so easy to convert FF lens to APS-C neither loosing image quality nor speed, then it must be million times easier and cheaper to create a native APS-C lens with similar characteristics. The practice though shows it's not true.

Direct link | Posted on Jan 15, 2013 at 03:34 UTC

One more thing nobody mentioned. NEX sensors (esp NEX-7) don't like light falling at acute angles, it results in vignetting and color fringing already a problem with EF lenses. This adapter will contribute even more to this problem, so I wonder if anything but telephoto lenses will be usable at all.

Direct link | Posted on Jan 15, 2013 at 03:28 UTC as 62nd comment | 1 reply
In reply to:

joepix: Hmm.. how many stops could be gained if they made one of these to convert medium format lenses to Micro 4/3s or even to use medium format on full frame? I'd love to use my old Hassy lenses again.

Exactly the same. It doens't matter what format lens was designed for, they shrink the FOV and by 0.71, while the aperture is the same, so that results in 1/0.71 = 1.4 (less due to losses in their adapter) increase in f/stop. The same amount of light will cover smaller area, nothing more. B.t.w. vignetting may become a serious problem.

Direct link | Posted on Jan 15, 2013 at 00:30 UTC

I'm quite skeptical that this gonna fly. One thing, I don't believe they will be able to preserve the image quality -- sometimes even simple protective filter significantly affects image quality, and here they added a lot of glass to lens' carefully crafted optical formula. Secondly, no fast autofocus means manual focus for all practical cases. But EF lenses have terrible manual focusing ring. Finally, EF lenses are too big and heavy to appeal to many people using NEX bodies. I have LA-EA2 adapter and A-mount lenses, and though there are no problems like here (focusing is fast and precise, image quality is not affected), yet I find even that setup to be too big and heavy and practically unusable with NEX body -- I would rather go with DSLR body if I wanted to use those lenses, it would be free from all the limitations and cost less too.

Direct link | Posted on Jan 15, 2013 at 00:24 UTC as 64th comment | 3 replies
On Best Camera of 2012: And the Winner is... article (1412 comments in total)

Unlike boring predictable Canons and Nikons, Olympus OM-D created a cult following, that's for sure, the poll is yet another evidence.

Direct link | Posted on Jan 1, 2013 at 08:44 UTC as 412th comment | 4 replies
On Dpreview Users' Poll: Best Camera of 2012? article (1511 comments in total)

This poll is meaningless. How do you compare apples and oranges? If this poll was called "which camera is the most hyped," then it would all make sense, and that's what seems people are voting for anyway.

Direct link | Posted on Dec 22, 2012 at 05:59 UTC as 217th comment | 3 replies

I was trying to think what was that camera reminding me of, and finally I realized: Nanarchy!

Take a pit bull terrier, a real ugly son-of-a-b!tch. It loses it's leg, somehow, and the pit bull says to you "hey man, I've only got three legs, will lady pit bulls still like me?? I mean, you've got to stop from laughing, haven't you? He's ugly with *four* legs! He's ugly with three! Hell, he'd be ugly if you put him in a suit and gave him a carnation!

Direct link | Posted on Oct 27, 2012 at 04:37 UTC as 13th comment
In reply to:

Alberto Tanikawa: http://dc.watch.impress.co.jp/docs/news/20121024_568156.html

Much more coverage of the new V2 (more and better photos), including pictures of the V2 with FT1 adapter mounted, and some DX and FX lenses too. I still don't like the design, and Nikon's choice to use a smaller battery (10.6Wh vs 14Wh), but I want to see what this new camera has to offer in IQ and performance.

You meant to say 50mm F/5.6 FF equivalent
<sarcasm>
Yea, that's a super-duper lens, go Nikon!
</sarcasm>

Direct link | Posted on Oct 27, 2012 at 04:28 UTC

I have a feeling somebody's gonna get fired from Nikon pretty soon.

Direct link | Posted on Oct 27, 2012 at 04:19 UTC as 14th comment

In many posts people have difficulty understanding how crop factor works, somebody suggested that small sensors have inherent advantage when it comes to system size. That's a false belief. Here is an example, take a small FF lens, e.g. 35-70 F/3.5: http://www.camera2hand.net/images/topic_images/pd123774_2.JPG
use 6x digital zoom on the long end to get an equivalent reach of superzoom on 6x crop P&S (e.g. Canon S5) of 35-420mm. Provided you have a sensor manufactured at the same technology node, you get the same image quality at the long end as the P&S camera but many times better quality on the short end. The FF camera system can be the same size as P&S.

Direct link | Posted on Oct 17, 2012 at 08:13 UTC as 18th comment | 3 replies
In reply to:

JohnFredC: The problem with larger sensors is the size of the lenses. As long as manufacturers persist with camera form factors where the lens protrudes from the front of the camera, the sensor size will determine pocketability. This continuing reliance on historical camera design impedes progress in the areas debated so enthusiastically in this thread.

The first mfg who combines a larger sensor (1" would be swell) with a folded optics design (similar to the Sony T-series, for instance) and a decent zoom range (6x-10x), smart camera interface via large touch screen, and SLR-style mechanical controls ergonomically placed, will change the camera paradigm forever, and get my money almost immediately.

>The problem with larger sensors is the size of the lenses.

That's a common misconception. In order to get the same amount of light (and the same image characteristics) for two different sensor sizes built on the same technology, the effective aperture of the lens must be the same. The lens can be shorter for smaller sensor, but it doesn't mean it will be overall smaller and lighter. If some manufacturer designs compact 50mm FF lens with F/5.6, it will likely be close in size and weight to an equivalent 33mm/F3.7 APS-C lens or 25mm/F2.8 micro 4/3 lens. The major reason why FF lenses are so much bigger is because they are so much brighter.

Direct link | Posted on Oct 16, 2012 at 23:36 UTC
In reply to:

intensity studios: The first company to make an interchangeable lens, small camera that can make phone calls and have wireless internet will be the company that gets my money.

Most people use phones to make phone calls. The last thing they need is a lens sticking out their pockets.

Direct link | Posted on Oct 16, 2012 at 17:48 UTC
Total: 529, showing: 361 – 380
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