Rolfens

Joined on Mar 31, 2014

Comments

Total: 103, showing: 1 – 20
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In reply to:

Sebastian K: I think I know where the problem is coming from. I played around with my e-m10 + 20/1.7, and sure enough, banding at ISO 400 and above. But only with the autofocus on.
The moment you switch to manual focus the banding is gone.
So I think it's the AF motor of the lens electrically (RF) interfering with the off-sensor amp of the camera. The higher the amp is turned up (higher ISO in photographer speak), the worse the influence of this interference.
That may mean there is no fix. I assigned MF to Fn1 so I can prefocus and the switch to MF. Not great, and very annoying since the 20/1.7 is one of the best overall m43 lenses. Light, bright, short, sharp (well, in the center).

The autofocus motor works before, not during exposure. The lens focus motor still works even in MF mode. There is no other way of adjusing focus. These lenses have not direct, physical control of focus. What you experience is most probably a seemingly random variation in the banding. It's hard to find a pattern and a trigger, I've done that as well. Some people think it has to do with "warming up" something. But sometimes you just can't tell why it's here, and then not here. One thing is constant though, closing down the aperture affects banding, usually making it worse, maybe due to the extra current draw that it requires.

Link | Posted on Mar 25, 2015 at 02:47 UTC
On article Canon PowerShot G5 Review (7 comments in total)

Used this like 10 years ago. It looks kinda cool, the size is nice, the lens is nice. It's horribly noisy (optically) at "higher" iso. Back then it was good/ok low-light performance for a digital, but we've come a long way!

Link | Posted on Mar 9, 2015 at 20:06 UTC as 4th comment | 3 replies
On article Nikon D7100 In-Depth Review (120 comments in total)

(virtually) no rolling shutter!

Link | Posted on Mar 6, 2015 at 04:44 UTC as 19th comment
On article Sony a6000 Review (899 comments in total)
In reply to:

Rspivack: Just bought the A6000 and want to try shooting some video in addition to stills.

I have never shot video before on a real camera (only camera phones), so I 'm wondering which video mode is the "best"?

For maximum quality, is there any reason not to simply choose the 60p "highest quality" mode?

Why would one choose a 24p mode? I read somewhere that 24p is the same as traditional film frame rates, but does that matter?

I'd recommend you experience with various modes. See how rolling shutter is in various modes. Rolling shutter an make a shaky video uncomfortable to watch. Usually there is less rolling shutter at higher framerates.

Link | Posted on Mar 3, 2015 at 16:37 UTC
On article Lytro Light Field Camera (9 comments in total)

Interesting for street photography. Despite autofocus getting faster and faster, not having to focus at all still beats that.

Link | Posted on Mar 1, 2015 at 23:11 UTC as 3rd comment
On article Studio Test Scene (60 comments in total)

The Phaseone has different colors than all other samples. The Phaseone images look a bit more pinkish. All other cameras look greenish (even when using only RAW) to various levels. It seems that the GH4 is pretty close to the Phaseone. I have to say I prefer the pinkish tones and they feel more realistic in this particular case, but what am I supposed to think about this?
How did you process the Phaseone image, as opposed to other cameras? This will help me understand. I am interested in color accuracy.

Link | Posted on Mar 1, 2015 at 17:01 UTC as 3rd comment | 1 reply

Sad to see the body reduced to a metal frame.
But then hey that's life.

Link | Posted on Mar 1, 2015 at 16:57 UTC as 2nd comment
On article Fujifilm X-E1 (17 comments in total)
In reply to:

Mentt: Hello, can you help me with deciding between FujiFilm X-E1 and Canon 600D with set lenses? Size and weight is no concern. Which camera has better image quality and which one is more versatile ?

These are two very different cameras, regarding size, viefinder, and other things. Depends on what you need, and it's best to try them these reviews will cover specifications but quite often what matters to you might not be mentioned in reviews.

Link | Posted on Mar 1, 2015 at 00:22 UTC
In reply to:

JerryShots: This from a country that has untold STOLEN and PRICELESS artifacts from around the world in it's possession that it refuses to give back...
I hope some Brit buys is and burns it at the councils doorway - Who elected them to be our CULTURAL MASTERS anyway? Regulate some sewage or street crossing but stay out of the field of HUMAN EXPRESSION. All the way out.

MarshallG, how can you say that they're placed on public display for the world to see and they are preserved for all the world, when, most probably 3/4, if not more (according to my estimation), of the world cannot afford to pay a visit to the UK, nor would be granted a visa. How does that work?

Link | Posted on Mar 1, 2015 at 00:17 UTC
On photo 18 Dan_2223_15mm_f5.6 in dpreview review samples's photo gallery (4 comments in total)
In reply to:

Jack Simpson: :D …. indeed, I find fisheye lenses much more fun :D

This is not a fisheye lens as it does not exhibit fisheye distortion. It is an ultra-wide (but non-fisheye) lens

Link | Posted on Feb 28, 2015 at 18:28 UTC
On a photo in the Tamron SP 15-30mm f/2.8 Di VC USD Samples sample gallery (4 comments in total)
In reply to:

Jack Simpson: :D …. indeed, I find fisheye lenses much more fun :D

This is not a fisheye lens as it does not exhibit fisheye distortion. It is an ultra-wide (but non-fisheye) lens

Link | Posted on Feb 28, 2015 at 18:28 UTC
In reply to:

JerryShots: This from a country that has untold STOLEN and PRICELESS artifacts from around the world in it's possession that it refuses to give back...
I hope some Brit buys is and burns it at the councils doorway - Who elected them to be our CULTURAL MASTERS anyway? Regulate some sewage or street crossing but stay out of the field of HUMAN EXPRESSION. All the way out.

To all those who say this is a stupid post: he has a point although maybe not conveyed in the nicest fashion. Have you ever been to the British Museum?

Link | Posted on Feb 28, 2015 at 17:46 UTC

Nipple alert!

Link | Posted on Feb 28, 2015 at 17:45 UTC as 6th comment
On article Lytro plans to shed jobs as it shifts focus to video (506 comments in total)

It makes sense. When looking at the lytro, beyond the hype, and the looks, one is struck by two things: the price, and the total lack of video capabilities.
The price obstacle alone can be surmountable, but put it next to the lack of video, and pretty much nobody, is going to buy this camera.
And yes, pulling focus in post video is much more interesting than what it does now.

Link | Posted on Feb 28, 2015 at 17:01 UTC as 22nd comment
On article Fujifilm X100S Review (492 comments in total)

Sony now offer auto iso WITH exposure compensation in manual mode, at least on their a6000. I've also read that Canon and Nikon do that on some of their cameras. The wording in the last paragraph of page 6 here partly implies that you can only get that on Pentax cameras, which is not true (anymore?). Anyway Pentax deserve mention for having implemented that AT LEAST as far back as 2007. We're in 2014 and still complaining about the lack of Exp Comp in M/aISO on Olympus, Panasonic, Fuji, and others.

Link | Posted on Feb 28, 2015 at 16:14 UTC as 23rd comment
On article Sony a6000 Review (899 comments in total)

what's a 'phone ?

Link | Posted on Feb 15, 2015 at 21:34 UTC as 51st comment
On article CP+ 2015: Canon shows 11-24mm in cross-section (63 comments in total)
In reply to:

Frank_BR: Interesting. They cut in half only the mechanical and electrical parts. The optical elements themselves were intact. Probably they were reused and are now in a lens that will be sold to someone else.

In any case it looks better with the lens elements complete. And less wasteful as well, like you said.

Link | Posted on Feb 15, 2015 at 21:14 UTC
On article CP+ 2015: Canon shows 11-24mm in cross-section (63 comments in total)
In reply to:

prossi: zooms for this focal range r really bs.
Actually for any focal.

Zooms are useful when they allow you to have tele and wide in a single lens. Then you don't need to swap lenses, something for which you may not have time for.
Yes zoom lenses with a limited range also have a limited use.
I use a normal fixed lens. I barely use the kit lens anymore because of it's relatively crap image quailty, especially in low light and at the tele end, and also because I am a freak for miniaturization and minimalism.
But I would happy to be using a zoom with a really big range (more tele and more wide than the kit lens), big aperture (at least f2.8), small size (comparable to fixed primes) and oh one more thing: affordable!
Never going to happen, I know.

Link | Posted on Feb 15, 2015 at 21:12 UTC
On article More things we found cut in half (CP+ 2015 edition) (136 comments in total)

It's half as impressive as the full one.
I wonder what it gives when mounted on a camera. Maybe half-decent photos?

Link | Posted on Feb 15, 2015 at 20:58 UTC as 35th comment
In reply to:

ttran88: Good stuff, mirrorless cameras going strong!!

Mirrorless have the lenses going for them, and the different brand of body manufacturers (Blackmagic, Panasonic, Oly, others maybe) going for them. But camera bodies, I'm not that sure anymore.

Link | Posted on Feb 11, 2015 at 02:02 UTC
Total: 103, showing: 1 – 20
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