Hand-blown Crystal Glasses: Lead content determines the sound

A set of hand-blown and cut crystal wine glasses: the body of the glass is blown, so the thickness has extremely subtle inconsistencies; the cuts on the body are ground by hand on a wheel, and the depth and angle of each ridge line are slightly different, with sharp points at the intersections. Due to the high lead content, the refractive index is high, and the cut surfaces show rainbow-like dispersion under light. The stem is drawn, slender and long, with no visible joint to the body. Three glasses are placed at different angles, one of which contains a light-colored wine. Dark background with side backlighting, emphasizing the sparkle and dispersion of the cuts. Avoid: machine-pressed glasses, perfectly regular cut patterns, uniform wall thickness, front lighting that loses dispersion.

Translated from Chinese by AI.

一組手工吹製並切割的水晶酒杯:杯身是吹製的,因此厚度有極細微的不均;杯身上的切割是人手在轉輪上磨出的,每一道稜線的深度與角度略有差異,交會處是銳利的尖點。因為含鉛量高,折射率高,切割面在光下呈現彩虹般的色散。杯梗是拉製的,細而長,與杯身的接合處看不出痕跡。三只杯以不同角度擺放,其中一只裝了淺色的酒。深色背景加側逆光,強調切割的閃光與色散。避免:使用機器壓模的杯、切割紋路完全規則、杯壁厚度均勻、拍成順光失去色散。