分类： 宝丽来技术类文章

经过多年努力，在各位 Polafun 群友反复的测试验证之后，我们终于解决了画面发红问题！

请看疗效：

真正做到了比天更蓝……

解决方法很简单：购买一片截止波长为650nm的UVIR滤镜，或是IR滤镜，贴在镜头前面即可。

→淘宝链接点这里← 九块钱解决发红问题

如果之后链接失效了，尝试搜索下图关键词：

买来之后，用我们的老朋友蓝丁胶，沿着SX-70的镜头圆框贴一圈、几个小点就可以了。

滤镜实测不需要反复拆卸，使用时可以考虑略微增曝。

就这么简单~

600grid filter is another experimental result of Pola.fun since it’s birth.

On http://pola.fun/600grid/, you may find the 600grid files that we provided. The final image result is like this:

For years, Polaroid lovers could not resist the charm of the original Spectra Grid Film. However due to the lack of reproduction, and even the Polaroid Originals has stopped to produce Spectra films, we decided to make a grid filter for 600 films. Providing the original charm with our own solution.

How to use:

1. Choose to download the correct file for your own printer.
2. Buy correct transparent printing films for your printer. It depends on if the printer is a laser one or a ink-jet one. Due to technology differences, you need to buy the matching type of films to get your expected result. Otherwise it simply won’t work fine.
3. Print the correct PDF file.
4. Crop along the white lines，as the following picture showed：

5. Carefully crop the little notch out as the following picture:

1. Insert the film into the cartridge like this:
2. Be careful! Make sure both the “DONT’T GO ABOVE” & the “DON’T GO BELOW” sign were visible inside the window of the cartridge. Make sure the little notch/clip is outside the window.
3. Make sure the filter is flat by doing some small adjustments. Do not use too much force otherwise you might cause a light leak to your films.

Guides on shooting：

1. Ink-Jet printed filters，are almost the same with an ND4 filter. It would reduce the exposure for about 2 stops (-2EV measured by my light meter). Thus for 600 series cameras( SLR 670 680 690, One 600, and 600 box cameras )，you need to compensate the exposure for 2 – 3 steps* to shoot normally. Every printer has a difference on its printing results, and every Polaroid camera might have a difference on their light measuring circuits, thus you might need to find your own best exposure settings. The recommendations here are only provided for a brief reference.
2. Ink-Jet printed filters theoretically can be paired with 600 film & SX-70 cameras directly, without any other modifications. Which means you don’t need another ND filter or another camera mod. However if you have modded your SX-70 to use 600 films directly, you would need to compensate the exposure, or remove your camera mod.
3. Laser printed filters are generally equal to an ND2 filter, which would reduce the exposure by 1 stop. Thus for 600 cameras you would need to compensate 1-2 steps* to get correct exposure. Again, due to the differences between printers and cameras, you might need to find your own best exposure settings. The recommendations provided here are only provided for a brief reference.
4. For SX-70 cameras, using the Laser printed filter, you might need to reduce 1-2 steps of exposure.
5. Remember to adjust your settings accordingly.
6. An easy and fast method to find the possible best exposure setting, is to use your Polaroid camera to shoot something showing on your computer monitor or tablet PC’s screens, with the filter mounted on. You need to show a naturally exposed picture (like bliss.jpg ) on full screen, and then use your camera to shoot that. If the result is darker than the image shown on screen, then you need to lighten your exposure, and vice versa. It takes at most of 2 or 3 times of testing to find a very optimal exposure setting using this method.
7. Please keep your best exposure setting in mind, since it really helps 🙂

600grid 网格滤镜是 Polafun 建成以来又一个新实验作品。

在 http://pola.fun/600grid/ 页面，你可以下载我们提供的 600grid 网格滤镜文件，在正确使用后，它的成像效果如图：

许多宝丽来爱好者都无法抵抗早已难以寻觅的原厂宽幅网格相纸的魅力，但是由于至今也没有复产计划，并且 Polaroid Originals 宽幅相纸也已经停产，因此我们决定制作适用于 600 相纸的滤镜。

 
使用方法

1. 选择下载适合你的打印机的文件。
2. 购买正确的、针对你的打印机类型设计的透明打印胶片。 它取决于你使用的是激光打印机还是喷墨打印机。由于两者技术不同，你必须要买对应类型的打印胶片才能正常使用。否则是无法正常打印的。
3. 打印对应的滤镜文件。
4. 沿着白线，如图裁剪：

5. 小心地把小梯形卡齿给裁出来，如图:

1. 将滤镜像图中这样塞入相纸盒：
2. 小心！确保“DON’T GO ABOVE”和“DON’T GO BELOW”这两行提示文字在装好以后都能看到，并且要确保刚才所说的小卡齿卡在相纸盒上。
3. 确保滤镜平整，如果不平的话可以用手抚平。注意不要用太大力气，不然可能造成漏光。

拍摄时的注意事项：

1. 喷墨打印机打印出的版本，大约相当于 ND4 减光滤镜。大约将会降低两档曝光。因此对于600系列的相机来说（普通的鲸鱼机、SLR 670 680 690系列、One 600系列等），需要提高2-3格曝光才能正常拍摄。由于每个打印机的打印效果都可能不一样，此外每台相机的测光参数也可能有所差异，因此具体的最佳设置，请根据实际情况和使用经验来调整。本说明仅供参考。
2. 喷墨打印机打印出的版本理论上可以使600相纸直接用于普通SX-70系相机，而无需进行任何适配 ISO 600 的改造，也不需要额外加 ND 镜。如果要在改装过的机器上使用，请注意提高曝光补偿，或是去掉减光部件。
3. 激光打印机打印出的版本，大约相当于 ND2 减光滤镜。大约会降低一档曝光。因此对于600系列的相机来说（普通的鲸鱼机、SLR 670 680 690系列、One 600系列等），需要提高1-2格曝光才能正常拍摄。由于每个打印机的打印效果都可能不一样，此外每台相机的测光参数也可能有所差异，因此具体的最佳设置，请根据实际情况和使用经验来调整。本说明仅供参考。
4. 对于SX-70系相机来说，使用激打版本配合600相纸，需要降低1-2格曝光。
5. 请通过实际拍摄不断寻找最适合你的机器的参数，比对实际场景和拍摄结果，寻找最合理的设置。
6. 一种比较快捷的矫正曝光参数的办法是，使用相机拍摄电脑或是平板显示器上全屏显示的、曝光比较自然的风光图片（如 bliss.jpg ）。如果拍出来的结果要比风光图片暗，那就适当提高曝光；如果要比图片亮，那就适当降低曝光。经过2-3次拍摄尝试，就可以找到最合适的曝光参数了。
7. 请记住属于你的曝光参数，会对你有很大的帮助 🙂