1173 			fLensInfo [0] = stream.TagValue_urational (tagType);  in Parse_ifd0()
1174 			fLensInfo [1] = stream.TagValue_urational (tagType);  in Parse_ifd0()
1175 			fLensInfo [2] = stream.TagValue_urational (tagType);  in Parse_ifd0()
1176 			fLensInfo [3] = stream.TagValue_urational (tagType);  in Parse_ifd0()
1184 				if (fLensInfo [j].IsValid () && fLensInfo [j].As_real64 () <= 0.0)  in Parse_ifd0()
1187 					fLensInfo [j] = dng_urational (0, 0);  in Parse_ifd0()
1206 				real64 minFL = fLensInfo [0].As_real64 ();  in Parse_ifd0()
1207 				real64 maxFL = fLensInfo [1].As_real64 ();  in Parse_ifd0()
1214 				if (fLensInfo [2].d)  in Parse_ifd0()
1217 					real64 minFS = fLensInfo [2].As_real64 ();  in Parse_ifd0()
1218 					real64 maxFS = fLensInfo [3].As_real64 ();  in Parse_ifd0()
3388 			fLensInfo [0] = stream.TagValue_urational (tagType);  in Parse_ifd0_exif()
3389 			fLensInfo [1] = stream.TagValue_urational (tagType);  in Parse_ifd0_exif()
3390 			fLensInfo [2] = stream.TagValue_urational (tagType);  in Parse_ifd0_exif()
3391 			fLensInfo [3] = stream.TagValue_urational (tagType);  in Parse_ifd0_exif()
3399 				if (fLensInfo [j].IsValid () && fLensInfo [j].As_real64 () <= 0.0)  in Parse_ifd0_exif()
3402 					fLensInfo [j] = dng_urational (0, 0);  in Parse_ifd0_exif()
3421 				real64 minFL = fLensInfo [0].As_real64 ();  in Parse_ifd0_exif()
3422 				real64 maxFL = fLensInfo [1].As_real64 ();  in Parse_ifd0_exif()
3429 				if (fLensInfo [2].d)  in Parse_ifd0_exif()
3432 					real64 minFS = fLensInfo [2].As_real64 ();  in Parse_ifd0_exif()
3433 					real64 maxFS = fLensInfo [3].As_real64 ();  in Parse_ifd0_exif()
4239 		if (fLensInfo [2].d && fLensInfo [3].d)  in PostParse()
4242 			real64 fs1 = fLensInfo [2].As_real64 ();  in PostParse()
4243 			real64 fs2 = fLensInfo [3].As_real64 ();  in PostParse()
4283 		else if (fLensInfo [0].d && fLensInfo [1].d)  in PostParse()
4286 			real64 minFL = fLensInfo [0].As_real64 ();  in PostParse()
4287 			real64 maxFL = fLensInfo [1].As_real64 ();  in PostParse()