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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Weird Red Dots? Anybody know what this is?

R

Ryan Emanuel

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I got my side handle this morning, realized I had to go to the hardware store to pick up a screwdriver to install the side handle. The third store has it. I get home, I'm super excited to be off ac power and run outside, go up to f22 on a 18mm 3.5 zeiss and I get this. Anybody have an insights/fixes?
 

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I think thats a reflection off the OPLF. Shooting into the sun will always give somewhat random results.
 
Yes it only happens when shooting into the sun, but given the pattern it makes in the footage its not a flare effect.
 
This is a reflection from the OLPF onto the back of the lens and then back onto the OLPF.

It's very common in RED footage when shooting sources like the sun or head on lights.

David
 
Could be dust inside your lens element if it only happens when shooting into the sun. Shoot another one with another lense, and if it doesn't appear you know it's that specific lense. If it's on both lenses, could be internal reflection.
 
Matthew Scott said:
It's normal. Will happen with your iPhone 4 and 5D II.
Click to expand...

This is from my 7d vs my scarlet. I don't know if its normal on all cameras, at least not to this extent.

So theres nothing I can do about it, Hard light is just no go?
 

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Matt Johnston said:
You need the RED OLPF flare guard/bushing.
Click to expand...

That has nothing to do with it. The flare guard deals with a different issue. These red dots are caused by light bouncing off the OLPF, hitting the back of the lens, then reflecting back to the sensor, just like David B.'s explained. There's nothing you can do about it.
 
Yes there is, open up and use NDs or skinny shutter. It won't eliminate it completely but the larger red dots will blend together and make the overall effect less visible. Also you will mostly see tis affect when shooting baclit subjects with direct specular sources (IE sun) in frame. A normal sunset doesn't do this.
 
Matthew Scott said:
Okay then......either I'm on drugs (which I'm not) or you are misinformed and don't know what you're talking about (it's this one). It is normal, and does happen on both the iPhone and the 5D II. Shal I embarrass you with proof? Or just leave it at that?
Click to expand...

I'd like to see it...
 
Matthew Scott said:
Okay then......either I'm on drugs (which I'm not) or you are misinformed and don't know what you're talking about (it's this one). It is normal, and does happen on both the iPhone and the 5D II. Shal I embarrass you with proof? Or just leave it at that?
Click to expand...

It's not about embarrassing anybody. But examples would be instructive to everyone. We'd learn something from seeing how they are similar and how they differ.
 
Cool, I've got the iPhone one on hand so I'll get that up ASAP, as for the 5D, it's in the archives but I'll hunt it down. Maybe my response was a little over the top, but to reply to my post with "no" is pretty pathetic. The original poster is concerned about his camera, when he should'nt be. My intention is to make that clear...

iPhone 4 > http://www.flickr.com/photos/74146495@N05/6884093269/

I have another iphone example somewhere....just hunting now.
 
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