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My cameras and kit

Found 9 results

  1. Marco

    A7s moire?

    This is a frame taken by my Sony A7s with PP4 25p Full frame Take a look at the tie. The picture speaks for itself. I thought that the A7s didn't have aliasing and moire, at least not in FF 25p mode!
  2. No official prices announced. Estimated between 300 - 400 $.
  3. As many of you will have noticed, our little precious is prone to moire, not only in raw. I have gone a long way to overcome all problems with this beast, but moire makes me sick to a point where I just want to sell the whole bundle and just stick to my G6. However, the more I compare my most felicitous test shots to what I knew before, I know I would regret it forever. It's time to address the issue. When I bought the Pocket, I reckoned the Sigma 18-35 with the Metabones BMPCC Speedbooster could substitute all my MFT lenses, and I sold them all (now only own the 14-42mm G6 kit lens). So there is little to compare with, mainly apertures. At open aperture, moire becomes so rare, it ceases to be an issue for me. But: As was proven to me >here, the Speedbooster in this combination results in a DoF of an f1.8 in APS-C. As soon as I want a deeper field by closing the aperture two stops, the image obviously gets too sharp for the sensor, thereby introducing moire. The concept of an OLPF (used i.e. with Canons 5D) seemed like a possible solution. But how? Apparently Mosaic Engineering is developing a special filter for the BMCC. Has anyone heard about efforts to create one for the Pocket? The theory behind this says that moire is a sign for reduced resolution and that if you cut off high frequencies at the right values, you optimize the resolution, even though the image looks a little softer. Some say the native resolution of the Pocket is near 1920 minus 15% (for bayerfiltering or sth.l.t.). With the right lenses (not too sharp ones) or with, well, actually a moderate soft-focus-filter (?) it should be possible to get rid of the annoyance once and for all. Is this correct? The very same topic in BlackMagicForum resulted in recommendations for ProMist filters, here. I used to own one myself, for weddings, but since I never actually bothered to use it, I sold it. Has anyone tried to use such a filter against moire?
  4. Review by Michael Hession at Gizmodo gizmodo.com/canon-70d-review-dslr-video-nirvana-comes-more-into-fo-1444911115 "Unfortunately, for Canon and its many excited customers, the 70D stops there when it comes to offering video shooters anything new. The video quality is not improved one bit over previous models. It still exhibits significant moire distortion in certain subjects, and just looks a bit muddy in finely detailed shots. True, it's no worse than every other DSLR out there except the very top end—the 5D Mark III and Nikon D800. But still, we should expect some kind of quality improvement over 5 years. Perhaps more inexplicable is the lack of headphone jack. How does Canon expect a video shooter to choose the 70D when they are unable to monitor audio? It doesn’t make sense." in comments-"GH3 controls moire reasonably well and is superior than Canon APS-C video in that regard (also more detail)".
  5. I was out and about the other day and saw some fellow filming with a very odd thing in his camera hotshoe.   It was a small motor with a small eccentric weight which gently vibrated the camera at some set speed. He explained that is was a cheap (<£10) way of ridding moire from his footage.   I thought he was maybe quite mad, but later found that Pentax are using their in-body stabilisation to perform the same function.   How weird is that?
  6. This problem is rather hard to describe. Just trying to figure out if I have a defective unit, or if this is common to all NEX-5n's.  Here's a video sample.  Read my comments to know what to look for.   Please let me know if you've had the same issues.    https://vimeo.com/59504237
  7. Here is my test I did today.  There are a few notes to be aware of:   1) There is moire evident when set at 0 (roof of the pavilion).  At -5 there is none, although the compression of youtube introduces moire. 2) Excessive sharpening in post is akin to sharpening in-camera by re-introducing moire.  Not only that but it also exacerbates banding as well.  The last shot of the sunset, you can see a sort of "pulsing" wave above the sun.  This is not present in either the 0 or -5 setting, although you can see some banding in the 0 setting. 3) There is a lot of noise at -5, but there's more detail too.  Proper noise reduction will help. 4) Contrast isn't easy to fix.  I made a bunch of other shots, however I wasn't able to match them.   Never forget we're dealing with an 8 bit codec.  You can grade the footage, but only so far.  And trying to fix things in post could result in worse problems.  The banding was especially surprising, and it looks worse in the ProRes version.  I think it best to find the right compromise for the type of shooting you do.  And you have to get your exposure and contrast as close to final version as possible.  The GH3 is better than the GH2, and you have some room to adjust, but it still isn't a whole lot.   http://youtu.be/qxxFe_y-2y4
  8. Mosaic engineering have released VAF-TXi anti-aliasing / anti-moiré filter for Canon T2i (550D), T3i (600D), & T4i (650D). Designed to cut down aliasing, moire and false detail, resulting in a much better picture. http://store.mosaicengineering.com/VAF-TXi-Moire-Aliasing-Filter_p_14.html you can see Andrew's example of the version for 5D here:http://www.eoshd.com/content/7120/canon-5d-mark-ii-mosaic-engineering-vaf-5d2-anti-aliasing-filter-review I have mine on the way, I'll let y'all know how it works ;) JG
  9. [url="http://mosaicengineering.com/products/vaf/d800.html"]http://mosaicengineering.com/products/vaf/d800.html[/url] Mosaic Engineering have their AA Filter for the D800 is now available. $385, same price as the 5D2. Hopefully there will be some tests posted on vimeo soon. GREAT NEWS!
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