Shutter Speed s. Many of today's SLR camera s offer action-stopping shutter speed s of 1/2000 sec. or faster. None of the point-and-shoot models come close, although some do offer speed s fast enough to stop most action.
According to the National Institute of Health, research suggests that taking between 20 to 50 milligrams of DHEA supplements daily should be sufficient and safe for most adults over the age of 30. Individual needs will vary, but less is usually better, especially at first.
There is no RDA or RNI for copper. However, normal daily recommended intakes are generally defined as follows: Infants and childrenâ Birth to 3 years of age: 0.4 to 1 milligram (mg) per day. 4 to 6 years of age: 1 to 1.5 mg per day. 7 to 10 years of age: 1 to 2 mg per day.