<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM ISOMET CORP
AND SUBSIDIARIES AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> APR-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 2,600
<SECURITIES> 0
<RECEIVABLES> 1,203
<ALLOWANCES> 0
<INVENTORY> 4,391
<CURRENT-ASSETS> 8,965
<PP&E> 2,509
<DEPRECIATION> 2,099
<TOTAL-ASSETS> 9,382
<CURRENT-LIABILITIES> 1,421
<BONDS> 0
0
0
<COMMON> 1,928
<OTHER-SE> 5,898
<TOTAL-LIABILITY-AND-EQUITY> 9,382
<SALES> 2,122
<TOTAL-REVENUES> 2,159
<CGS> 1,267
<TOTAL-COSTS> 1,727
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 8
<INCOME-PRETAX> 432
<INCOME-TAX> 162
<INCOME-CONTINUING> 270
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 270
<EPS-BASIC> .14
<EPS-DILUTED> .13
</TABLE>