Sensor reflection/ghost images

I don't have any issues with reflections and I am willing to help anyone who is and who wants to learn. So if there is anyone who wants help do feel free to PM me.

On the other hand, if you feel pointing a fast lens at blown out windows is your thing and are unhappy with the FS100's inability to defy the laws of optical physics then can I suggest you continue posting to this thread where I'm sure you will receive all the necessary consolation.

Again, you presume too much about what you don't know about what other people are doing. These reflections occur from non blown out areas as well. I'm sorry you cannot wrap your head around the fact the sensor reflects more than many other sensors. It's not about defying the laws of physics, it's about recognizing something that DOESN'T account for the physics as well. Like I said, I pointed THREE DIFFERENT CAMERAS with THE SAME LENS at scenes and saw vastly different results in the reflections. Period. You can make all sarcastic comments that you want, it doesn't change the fact the camera doesn't perform in this area as well as other cameras can. I'm glad you feel that you can decide what is "proper usage of a camera" but I say, if other cameras I own that I paid a lot less for don't have the same level of a problem, that means the design isn't as good.

Actually, let's even take this a step further. If you actually read the literature for FS100, one of Sony's selling points was using the camera for things like weddings. (Their words, not mine). So you can wax poetic about using the camera correctly, but I can say without hesitation that people that shoot weddings end up shooting situations that change without their control. They start shooting, someone in the church turns up the lights, opens a window, outdoors the lighting changes. So if in fact the camera was designed to shoot situations like a wedding, it should be designed to handle not exact perfect conditions, since a wedding isn't going to stop because the camera is having a hard time shooting something.

This whole extension of discussing the FS100 reflection issue was another user just letting people know that Sony told them they were working on addressing the reflections in the FS700, to which you accuse them of lying. If you want to talk about professionalism, that isn't it. I've talked with Sony myself and passed along my feelings and findings on the reflection issue, and they've thanked me. Sure, like other sensors the reflections will not be gone, but bringing them down within the range of others will make it less of an issue.

If your shooting conditions don't push the FS100 as hard as other people, I'm happy for your. But your usage methods are not the same as mine, or other people, and it's not about ignorance of using the camera, it's different needs. The FS100 is not just a single "characteristic" decision on using it. There are MANY aspects to shooting that I have to account for. But it's okay to not like certain aspects of it. It's okay to discuss not liking them.

For instance, if I shoot for more than 10 minutes in one take multiple times, eventually the audio and video being output by the onboard LCD and headphone jack are out of sync. It's a design flaw that I have to work around occasionally.

If you don't have anything useful to add to the discussion, and I'll give you a hint, complaining about others being unhappy with the reflections isn't useful, move on.
 
I
What is CLEAR to me is the coating on the FS100 sensor isn't the best for what it is being used for. I can take the same lens, put it on my 7D and have NO sensor reflection in the same situation.

Your findings are absolute right Rick, it get's worse with aperture size and ND filters. Also the back element and even the length of the lens plays a role.
But I´m 95% sure, it's not the sensor but the filter in front of it.
RED had similar problems and they where sending out upgrade filters to fix it.

Frank
 
Your findings are absolute right Rick, it get's worse with aperture size and ND filters. Also the back element and even the length of the lens plays a role.
But I´m 95% sure, it's not the sensor but the filter in front of it.
RED had similar problems and they where sending out upgrade filters to fix it.

Frank

Actually, yes Frank, thanks for clarifying. For those interested, when I mention sensor, I just meant the whole piece included filters after the lens. This is pulling information from a lot of different people here, but my understanding is that there is a protective coating on the front of the filters (OLPF, IR, and whatever else is sandwiched in) that is just more reflective. That coating for instance, as I've been told, is designed for things like preventing dust from collecting on it.

When I look at the sensor in the 7D, the filter definitely looks different and is less reflective. Given the 7D's sensor is protected by typically the mirror unit, they probably didn't have to put something so protective in it. Given the AF100 ALWAYS has ND in the path (because with ND0 it is a clear filter) they too probably used less as well.

I'd love to be able to send it back to Sony for a different filter, without question. Although I wonder if part of the fix includes the ND on the FS700 given it can protect the sensor unlike on the FS100 which has nothing in between.
 
For instance, if I shoot for more than 10 minutes in one take multiple times, eventually the audio and video being output by the onboard LCD and headphone jack are out of sync. It's a design flaw that I have to work around occasionally.

Complete off topic, but yeah I noticed something like this yesterday…..What's up with that?

whatupwiththat.jpg
 
Complete off topic, but yeah I noticed something like this yesterday…..What's up with that?


Not sure. I did pass the information back to Sony though so I know they know about it. If I cycle the camera down and up it gets rid of the problem so I do that more often now.
 
Yall should have seen the absolutely RIDICULOUS footage I was getting in Times Square at night time during my NY trip last month (with all the bright lights in the advertising signage).... the footage was more ghost reflexions that the actual content - much worse than the OPs... really trippy and completely unshootable. Have only encountered the ghosting with a blown window shot or two since.
 
(i'm assuming it was so terrible/pronounced due to the intensity/type of lights used? if any of you live in NY you have to try it as an extreme stress-test. head down there at night and shoot wide open... pretty next-level, and hey maybe it will help shed some light on the phenomenon)
 
Were you shooting with a UV filter on the lens? I had terrible ghosting my first night with the cam, and read on here to take the UV off. Made it much better.
 
For instance, if I shoot for more than 10 minutes in one take multiple times, eventually the audio and video being output by the onboard LCD and headphone jack are out of sync. It's a design flaw that I have to work around occasionally.

Interesting Rick, I shot two comedy shows this year one at the Crest Theater in Sacramento and one at the Red Lion Inn. Both shows were well over an hour long and I never noticed this issue with my camera. Now you got me wondering.
 
Gary, we can start this in another thread if we want to talk about it more that there seems to be some interest. I still haven't figured out why it happens. I just filmed a 2 1/2 hour Ableton Live clinic and then did testimonials at the end, the audio was WAY off. The strange thing is it doesn't always happen, but when it does, man, it messes with your head if you are doing both the audio monitoring and the filming! :)
 
Wow, I can't believe I haven't noticed it so your talking about what your seeing on the HDMI out to your monitor, and what your hearing out your audio port, but everything records fine correct?
Maybe this needs another thread.
 
Hello Everyone,
Has there been anymore solutions to the reflection issues?
I noticed this for the first time last week where I was doing an interview where I had a window way behind my talent and I did notice it until I got home and watched it on a bigger monitor.
I was using a Nikon prime 35mm 2.0 with a heliopan variable ND. It was really bad.
If I remove the ND, as suggested here, I will loose my ability to keep my f2.8 which I need to maintain. What else can I do?
I wish the screen was a higher resolution and larger so I could see these types of things easier on set. Time to buy a nicer monitor I suppose.

Cendrick
 
I just noticed this on my 60D using a Summicron-R 35mm v.1 with no filtration shot in the f/2-f/5.6 range (didn't shoot any more closed down than that) I got this both with strong backlight (sunlight from windows) as well as bare bulbs out well outside the frame. I was not able to eliminate the bulb reflections with out blocking the frame. I didn't see the reflections when using 50mm or 80mm Leica lenses I was also shooting at the time so I used instead unless I absolutely had to get the wider field of view. Anyone using the 2nd version of the 35 'cron who can report if an upgrade would solve this problem in either the FS100 or DSLRs?
 
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