![]() The camera default mode will then be set to 15 seconds as that is the closest value that can be set. So this is the exposure time needed to get a shot with the same exposure after attaching the ND1000 ND filter. This value is multiplied by 1000, which means 0.008s x 1000 = 8 seconds.If a shutter speed of a fraction of a second was output from the camera (here 1/125s), the value should be converted to seconds.Therefore, the exposure time has to be increased by a factor of 1000. Because with the filter installed, 1000 times less light hits the sensor. The 1000 indicates the value by which the shutter speed must be multiplied when the filter has been mounted. Now we mount the gray filter, for example the Kase ND1000 100x150 mm, and notice that the designation is ND1000.Then you take a correctly exposed test shot and note the length of the exposure time. First you install all the filters, with the exception of the gray filter, in your filter holder or screw them directly onto the lens.A pocket calculator is an advantage for the procedure, but you always have it with you in the form of your cell phone. Calculation of shutter speeds with ND filterĬalculating shutter speeds with ND filters is a simple process that requires just a few steps and should be easy for any photographer. With this knowledge, you as a photographer should be able to understand the following calculation more easily. For example, an ND8 filter darkens by 3 f-stops, an ND1000 filter by 10. ![]() The different strengths of the filters indicate by how many apertures they reduce the light. In order to gain a general understanding, it is important to know by how many stops an ND filter darkens. If you only want to work with one table, you can simply skip the next paragraph. If you would like to learn more about neutral density filters in general, we recommend our FAQ article. But if you prefer to use a clear table when taking pictures, or if you prefer to learn how to calculate the shutter speed with ND filters, this guide is just the right thing! Below we have shown a conversion table of recording times with ND filters for you. In addition, with a neutral density filter, you only have to take one shot to get the desired result immediately.īut how do I calculate the correct exposure times with an ND filter? Don't worry, you don't need to be a math pro! For example, you can simply use our conversion table or one of the various apps. These problems do not occur when using an ND filter. the attempt to artificially simulate a long exposure, almost always shows the problem of possible artefacts. The merging of different recordings, i.e. ![]() It is precisely this property that makes the gray filter so unique and at the same time irreplaceable, since this effect can hardly be achieved in digital post-processing. ND filters (also known as neutral density filters or neutral density filters) have the property of absorbing part of the incident light and thereby adjusting the exposure time in order to realize a picture with the desired exposure time.
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