BJL

Lives in United States United States
Joined on Dec 17, 2002

Comments

Total: 279, showing: 1 – 20
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In reply to:

vegasdood: I posted this in a local bicycle forum as well....bikes now run in the same prices as expensive cameras and are also targets for this type of fraud.

The Venmo-enabled scammers picked up the cameras in person in at least some cases.
Venmo is at least liable as an enabler: if using it for sales is not allowed, why does it let they buyer/payer who violated this rule get the money back as well as the product? So the scammers said to Venmo "I made payments that are against the rules, so give my money back and stiff the person who received payments"?? More strange given that the payer acted in a highly suspicious way, making multiple small payments.

Anyway, the moral is: do not accept an online payment through a medium you do not know!
Or at least hold the goods "till the check clears"—money transferred to your bank account.

Link | Posted on Jul 19, 2017 at 20:49 UTC

The sensor is 32x24mm, so why not call it that instead of the inaccurate "Full Frame" which means 36x24mm — except when it means 54x42mm for medium format fans!

By the way, 32x24mm has the advantage that it can be made without on-chip stitching, with the needed fab equipment having a maximum field size of 33x26mm. And the squarer 4:3 makes more sense for astronomy.

Link | Posted on Jul 12, 2017 at 19:43 UTC as 13th comment
In reply to:

tkbslc: Considering RED makes professional products that aren't really intended for mass market, I'm going to assume this product isn't targeted at most of us.

That said, I can't really imagine a director or cinematographer wanting a film rig that required snapping a phone into it in order to use it.

Steve jobs had a good description of a smart-phone back at the iPhone launch event. He teased that he was about to announce three products:
- The first one: is a widescreen iPod with touch controls.
- The second: is a revolutionary mobile phone.
- And the third is a breakthrough Internet communications device.
If there had been third party iPhone apps from the beginning, he could have added:
- And one more thing: a computer that fits in your pocket.

If Red phone models stick with the same form factor and USB-Cinterface, it might make sense to use them as the touchscreen I/O, CPU, WiFi and uplink module of a high-end modular camera system.

Link | Posted on Jul 11, 2017 at 18:11 UTC
In reply to:

Dante Birchen: Great 4k video!

Microphone port No
Headphone port No
EVF optional (for how much?)

@dante; you are not educating me: I am well aware of Leica's efforts with SLRs, both film and digital. My statement was simply that Leica has a very long and respected history with mirrorless cameras, not that they have only ever made that sort of camera.

P. S. I do not know of any video cameras that lack an eye-level EVF, so even if you are not interested in video (nor am I), it seems hard to deny that for the now wide-spread use of "stills-first" camera for video benefits from having the option of an eye-level VF—and for video that must be EVF, not OVF. In fact, Leica even makes an accessory EVF for its recent CMOS-sensor M cameras!

Link | Posted on Jul 11, 2017 at 15:36 UTC
In reply to:

Dante Birchen: Great 4k video!

Microphone port No
Headphone port No
EVF optional (for how much?)

An add-on EVF for a DSLR could be useful for things like video, but would not solve the bulk and lens-design restrictions that make some people prefer mirrorless.

P. S. Leicas have been mirrorless from the beginning!

Link | Posted on Jul 10, 2017 at 16:35 UTC
In reply to:

Photo_AK: Consumers shouldn't care about this, it really doesn't matter - we'll just buy other memory cards, big deal ... But this is bad news for Nikon and their decision to go with XQD instead of CFast. Having only one manufacturer supporting XQD is really not good, not to mention it's one of their biggest threats and competitor on the camera market that didn't go with XQD even in their own cameras ... Not good.

Sony use XQD cards is some of its video cameras (XQD and CFast seem more oriented to the high bandwidth needs of video) so the format seems safe for now.

XQD does have the advantage of using the faster and more widely supported PCIe whereas CFast uses SATA, and is now slower than the fastest SD card standard, 6.0.

Maybe that is why the CompactFlash Association seems intent on replacing both XQD and CFast by CFExpress, which uses PCIe, but with up to 8 lanes and in the form factor of XQD rather than than of CFast. (So maybe it should be called XQDExpress?!)

Link | Posted on Jun 29, 2017 at 00:58 UTC
In reply to:

Reactive: I think it's great that Fuji are doing well, but I'm sure a couple of things might help them sell even more.
a) Replace the Fujifilm name. It's from yesteryear and looks silly and old-fashioned on a modern camera.
b) Try to modernize the designs. However technically competent they are, and however good the handling, making cameras that look like antique Zenits from the 1970s can do nothing but help many potential buyers overlook Fuji and go straight to modern looking Canons and Nikons.

@drblack: "alpha" was the branding that Minolta used in Japan. Sony decided to eliminate the regional differences in brand name ans use "alpha" everywhere.

Link | Posted on Jun 24, 2017 at 17:06 UTC
In reply to:

Yassine Eraman: Please what's the size of RED 8K sensor ?? Is it FF or MF or APS-C ??

According to Read's website at http://www.red.com/products/weapon-8k#tech-specs the sensor is 29.90 x 15.77 mm (Diagonal: 33.80 mm), and an "ANA" version at 33.60 mm x 21.60 mm (Diagonal: 39.94 mm).
So bigger than the classic 35mm movie formats like Super 35 and a bit bigger than so-called APS-C sensors, but a bit smaller than 35mm still format of 36x24mm (41.5mm diagonal), so that lenses for that format can be used.

However, multiple articles about the original announcement give the sensor size as 40.96mm x 21.6mm:
http://nofilmschool.com/2015/04/red-8k-full-frame-vista-vision-weapon-dragon-6k-price-cost-availability-nab-2015
https://www.engadget.com/2015/04/13/red-8k-weapon-camera/

Maybe Red announced one thing and then exercised its standard disclaimer "Tech specs reflect both current and projected information. Everything is subject to change." to make the sensor usable with a lot more lenses.

Link | Posted on Jun 20, 2017 at 21:22 UTC
On article iOS 11 will cut photo, video size in half (82 comments in total)
In reply to:

Linerider: So this only works with the latest Apple device.
What's the point?

@WesPerry Yes there has been some H.265 support and usage since the iPhone 6, released in late 2014. See this news story
http://appleinsider.com/articles/14/09/12/apples-iphone-6-iphone-6-plus-use-h265-codec-for-facetime-over-cellular

Link | Posted on Jun 11, 2017 at 14:34 UTC
On article iOS 11 will cut photo, video size in half (82 comments in total)
In reply to:

bartjeej: Would HEIF also allow even lower compression (or atleast, less lossy compression) than current low-compressed jpegs, or more than 8 bits, at sensible file sizes?

Yes to both: HEVC and HEIF (H.265) have options for lossless compression and various bit depths up to 16. IIRC, iOS 11 will only use 8 and 10 bit depth. Lots of details at Wikipedia https://en.wikipedia.org/wiki/High_Efficiency_Video_Coding#Profiles

Link | Posted on Jun 11, 2017 at 14:22 UTC
In reply to:

chshooter: Using the 85mm lens on medium format doesn't convince me. The lens was designed for 35mm sensors so heavy vignetting and soft corners seem to be pretty likely on a bigger sensor

Typically, lenses longer than "normal" produce a bigger than needed image circle, as a side effect of their design, with image circle diameter not much less than their focal length. So _any_ 85mm lens design has a good chance of comfortably covering the mere 55mm image circle of the GFX, and probably even any 65mm design.

What I do not expect from these "discount" third party lens makers is wide-angle or normal lenses for larger than 36x24mm formats – those definitely need new optical designs.

Link | Posted on Apr 25, 2017 at 23:55 UTC
On article Sony a9 first look videos (301 comments in total)
In reply to:

Mike921: Specs look good, sure do. When/if the lens situation firms up they could be serious competition to Canon/Nikon. However, Cameras are such a small part of Sony corp. revenue, the product line can be eliminated in very short order should the balance sheet dictate (a la Samsung). Canon and Nikon have a lot more skin in the game.

@rubberdials The EF-M mount diameter is 47mm, so wider than Sony E mount (46.1mm) while both are 18mm from the sensor, so that sounds wide enough for 36x24mm format. (Nikon F mount is only 44mm wide!) But maybe you know more details.

Anyway, in the worst case, Canon could introduce a 35mm format mirrorless mount that _is_ big enough, and accommodate EF lenses via an adaptor. Likewise for Nikon.

Link | Posted on Apr 21, 2017 at 02:39 UTC
On article Sony a9 first look videos (301 comments in total)
In reply to:

Mike921: Specs look good, sure do. When/if the lens situation firms up they could be serious competition to Canon/Nikon. However, Cameras are such a small part of Sony corp. revenue, the product line can be eliminated in very short order should the balance sheet dictate (a la Samsung). Canon and Nikon have a lot more skin in the game.

@rubberdials, Canon already has its mirrorless system "M" system that allows EF lenses to be adaptor mounted and fairly small bodies. The same would work with a 36x24mm sensor:

With mirrorless cameras, sensor size has rather little effect on the size of the camera body — size is mostly dictated by lens size and the need for adequate controls, battery, and such.

Link | Posted on Apr 20, 2017 at 20:44 UTC
On article Sony a9 first look videos (301 comments in total)
In reply to:

pjl321: If Sony knows what a great feature an electronic shutter is then why would they not include it on the A-Mount flagship the A99ii?

I like the A9 but the price is too high, the A99ii offers similar-ish speeds, almost twice the resolution, dual card slot, good battery life (for Sony) and has better priced lenses (ie Tamron, Sigma).

Its hard to justify paying 50% more for this camera over the A99ii or if you are locked into the E-Mount already then paying twice the price of the A7rii (although is a much bigger speed increase A7Rii to A9 than A99ii to A9).

I am also a little worried by the lake of interest in what mentioning what really matters, image quality, ISO handling, low light performance, dynamic range...)

Perhaps because:
A) The electronic shutter is a feature aimed at special needs like very high frame rates that are more important to the target market of this camera than for the A99ii.
B) This is a newer sensor than the one in the A99ii (which arrived almost two years ago in the A7Rii) and with fewer, larger photosites, which might make it easier to do the electronic shutter, and to do it with acceptably low rolling shutter effect.

Link | Posted on Apr 20, 2017 at 15:15 UTC
On article Hasselblad X1D final production sample gallery (142 comments in total)
In reply to:

Dragonrider: JPEGs are kind of flat (low contrast and muted colors) but the processed shots look nice. I do think the limited depth of field on the MF could be "limiting" for a lot of applications.

@Porky89 Yes, that is exactly what I said. The higher ISO speed option is not so bad, since it roughly just cancels out the IQ advantage that the larger format typically has at equal ISO speed, but I think we agree that the IQ advantage of medium format typically comes with the trade-off of lower shutter speed; it is not for action photography!

Link | Posted on Apr 16, 2017 at 00:20 UTC
On article Hasselblad X1D final production sample gallery (142 comments in total)
In reply to:

Dragonrider: JPEGs are kind of flat (low contrast and muted colors) but the processed shots look nice. I do think the limited depth of field on the MF could be "limiting" for a lot of applications.

@Dragonrider, how does your comment about DOF translate to "not much of a real IQ advantage"? Traditionally MF has been chosen over 35mm format for greater resolution, finer tonal gradations (related to dynamic range) and better lens quality through factors like achieving a giver DOF at a higher f-stop and so with less aberrations — but typically at lower shutter speeds and so with more need for a tripod (or good IS!)

Link | Posted on Apr 15, 2017 at 18:42 UTC
On article Hasselblad X1D final production sample gallery (142 comments in total)
In reply to:

Dragonrider: JPEGs are kind of flat (low contrast and muted colors) but the processed shots look nice. I do think the limited depth of field on the MF could be "limiting" for a lot of applications.

DOF can always be increased by stopping down, and with apertures chosen to give equal DOF in different formats, the diffraction effects are also equal (when images are viewed at the same size.) So it is not true that larger formats are "stuck" with less DOF.

The higher f-stop needed to get a given DOF does mean that a larger format is stuck with needing to either:
- use a lower shutter speed in order to get the same DOF at the same ISO speed, or
- increase the ISO speed in order to get the same DOF at the same shutter speed,
but at worst that reduces or cancels the IQ advantages of a larger format; it does not put it at a disadvantage in IQ. (Just in price, size, and weight!)

Link | Posted on Apr 15, 2017 at 17:07 UTC
In reply to:

Nicolas Alexander Otto: I'm German and I've never heard of these guys before. Maybe it's because I mainly shoot ultra wide and thus have no need for such lenses or it's because their marketing department is not up to the task. Anyway looks interesting for portrait shooters I guess.

@mr.izo Reading that Wikipedia article to the end, it appears that the current "Meyer Optik" is just reusing the name of that venerable company, which disappeared some years ago.

Link | Posted on Apr 8, 2017 at 23:40 UTC
In reply to:

Satyaa: I am not familiar with the brand.
Is this a company with proven products or just something with a fancy name to sound exclusive?
Could anyone who used these lenses respond with your experience?
Thanks.

Edit: After posting that, I read through many comments below and got a good laugh out of them. I think I got my answer :)

@Karroly Indeed, I am not saying that these lenses are not indeed German designed and made; I am only saying that this company is not at all the same one as the prestigious "Meyer Optik" of years past, so the name of the company is deliberately misleading.

Frankly, it smells like yet another KickStarter pyramid scheme.

Link | Posted on Apr 8, 2017 at 23:37 UTC
In reply to:

Satyaa: I am not familiar with the brand.
Is this a company with proven products or just something with a fancy name to sound exclusive?
Could anyone who used these lenses respond with your experience?
Thanks.

Edit: After posting that, I read through many comments below and got a good laugh out of them. I think I got my answer :)

Thanks Karroly: so this is a recently created company, recycling the brand name of a historic lens maker that disappeared some time ago. A bit like the current "Kodak" and "Polaroid" branded products, but far more expensive.

Link | Posted on Apr 8, 2017 at 00:57 UTC
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