# Weird Yellow Color Artifact **URL:** \ **Category:** Digital Camera Scanning\ **Created:** [November 27, 2019, 9:34am UTC](https://forums.negativelabpro.com/t/weird-yellow-color-artifact/868 "2019-11-27T09:34:13Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![nate](https://yyz1.discourse-cdn.com/flex029/user_avatar/forums.negativelabpro.com/nate/32/4_2.png) [@nate](https://forums.negativelabpro.com/u/nate)\ **Post date:** [November 28, 2019, 5:02am UTC](https://forums.negativelabpro.com/t/weird-yellow-color-artifact/868/4 "2019-11-28T05:02:14Z")
You should check out this rundown of some of the numerous things these orange and yellow splotches when digitizing film with a digital camera: > [@Orange spots/blotches/fog/casts?](https://forums.negativelabpro.com/t/orange-spots-blotches-fog-casts/598): > > I’m getting some weird orange spots/blotches/fog/casts on some pictures after scanning my negatives with a DSLR and a light pad. I’m scanning in a room with all other lights turned off, I’ve tried it with and without the pane of glass on top that I use to hold the negatives flat, and I have mask on top of my light pad to block out extraneous light. The negatives themselves are clean, and so is my lens, sensor, and light pad. Sometimes the scans come out clean, sometimes with the marks, and they… There are a few steps you should take: **1. Make sure to mask at ALL the stray light from your light source.** It doesn’t need to be fancy. Some dark construction paper with a mask cut out will do. **2. Be sure to use your lens hood** **3. Take of any filters that are on your lens** (like UV filters) **4. Shoot the emulsive (matte) side of film facing towards camera** (it’s less reflective and less likely to catch the light reflecting back from your camera/lens). **5. Make sure your aperture is at f/8.0 to avoid lens vignetting.** **6. Shoot manual and expose with your DSLR so that the negative is just right of center in preview histogram on camera.** (If the digitization is extremely under-exposed, it could exacerbate unevenness issues during processing) I’d also recommend the following: **1. It’s better to use a dedicated macro lens (without no extension tubes)** **2. Modern macro lens have better lens coatings and flare protection, so less prone to this** **3. Mirrorless cameras are more prone to sensor flare because the sensor is closer to the lens elements** (Sony seems to be the worst) Hope that helps! Nate Creator of Negative Lab Pro --- _[View the full topic](https://forums.negativelabpro.com/t/weird-yellow-color-artifact/868)._