The Konica Minolta CL-500A is a handheld illuminance spectrophotometer that conforms to both DIN and JIS standards. This device can measure the general color rendering index (CRI), as well as individual color rendering indexes R1-R15, color temperature, illuminance, chromaticity and the Scotopic-Photopic (S/P) ratio. Besides being compact & lightweight, the CL-500A is also an extremely flexible tool.… Read More »


All plants require a ready supply of macro and micronutrients within their growth medium in order to accomplish their standard physiological functions. The presence of appropriate concentrations of nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sulfur (S), magnesium (Mg) and iron (Fe) have all been recognised as essential for optimum plant growth. Deficiencies in… Read More »


A lot goes into your morning Coffee. In fact, from tree to table, the process of creating your morning pick-me-up is very complex. Part of this is because like making wine, coffee as a product changes from year to year. This means that establishing a consistent coffee quality can be difficult. Further complicating this is… Read More »

The Color of Virgin Coconut Oil

The color of virgin coconut oil is colorless and clear.  In the production of virgin coconut oil (VCO), specification indicates VCO is colorless and clear.  VCO, a colorless and clear pure coconut oil is a high value oil.  It is pressed from fresh mature kernel without heat and chemical treatment and has wide range of applications… Read More »

What Is A Chroma Meter?

What is a chroma meter?  What is a chroma meter?  The Konica Minolta Chroma meter is a meter to measure color or technically a colorimeter.  Konica Minolta range of colorimeters are known as chroma meters.  Developed in the 1980s, the chroma meters went through a series of upgrade.  And today, the Chroma Meter CR-400 and… Read More »

Setting Up A Color Quality Program

Setting up a color quality program can be daunting as color science or color technology are not taught in schools.  Terms like CIE L*a*b*, whiteness and yellow indices and ΔEab seems foreign.  With technical terms like illuminants D65, A, TL84, d/8, 45/0, geometry, SCE and SCI, it can get complicated and hard to comprehend. Most… Read More »

Chlorophyll Meter SPAD-502Plus

Chlorophyll Meter SPAD-502Plus is an easy to use meter to estimate the chlorophyll content of plants.  The SPAD-502Plus measures the ‘greeness’ of a leave.  Simply place the leave between the sensors to take a measurement.  A non-destructive test, the Chlorophyll Meter SPAD-502Plus is easy to use and therefore data collection on site is simple. Many… Read More »

The Benefits of Measuring Colors

Spectrophotometers, colorimeters or chroma meters measure colors.   The color data are expressed in numbers of a color space like CIE L*a*b* and therefore the benefits of measuring colors are: Research and Development Precise Color Communication Color Library Quality Improve Yield Productivity Trend Analysis Shade Sorting The above benefits of measuring colors are done with CIE L*a*b*… Read More »