A.Schacht Ulm Travenar Ulm Travenar Heritage

เรื่องราวของเลนส์

The Schacht company was founded in Munich in 1948 by Albert Schacht, who had previously held a management position at Zeiss and Steinheil. From 1954 onward, Schacht manufactured its lenses in Ulm on the Danube (hence the 'Ulm' designation). According to the Nikolaus-Burgard review, almost all Schacht lenses are optical designs by Ludwig Bertele, the inventor of the Sonnar, meaning the Travenar line can be considered a direct development of the Zeiss Sonnar formula. The company was sold in 1967 and lens production ceased in 1970. Reviewers describe Schacht lenses as 'mechanical and haptic delicacies' that flew under the radar for decades and are only recently being rediscovered, with some arguing they deserve to be mentioned alongside Leica and Zeiss. No established community nicknames appear in the reviews. The cult following stems partly from the beautiful, art-object build and the 16-bladed aperture design, though at least one reviewer cautions the reputation may outpace real-world optical performance. The Travenar name covers multiple focal lengths (a 90mm f2.8 and a 135mm f3.5 are documented in these reviews).

สรุป: The Schacht Ulm Travenar is a beautifully built, Sonnar-heritage vintage lens (courtesy of Ludwig Bertele) that appeals most to collectors who value exquisite mechanics and mid-century optical design. The 135mm f3.5 impresses reviewers as genuinely convincing, while the 90mm f2.8 is solid and sharp in its mid-aperture sweet spot but delivers only acceptable, unremarkable bokeh — leading some to call it over-hyped and overpriced. Best for enthusiasts who appreciate craftsmanship and Sonnar lineage over dramatic vintage character.

คาแรกเตอร์ของภาพ

โบเก้

โดยรวมถือว่าใช้ได้และยอมรับได้ แต่สำหรับเลนส์ 90 มม. f/2.8 ไม่มีอะไรโดดเด่นเป็นพิเศษ — ไดอะแฟรม (ใบเบลด) 16 ใบก็ไม่ได้ช่วยยกระดับคุณภาพอย่างมีนัยสำคัญ

ความคม (เปิดสุด)

เลนส์ 90 มม. ที่ f/2.8 ให้ความคมชัดดีและอยู่ในระดับยอมรับได้เมื่อใช้ที่รูรับแสง f/5.6–f/11 รวมถึงมุมภาพ ส่วนเลนส์ 135 มม. ที่ f/3.5 ถูกกล่าวว่าให้ผลลัพธ์ที่น่าประทับใจมาก

รีวิวจากผู้ใช้

ข้อดี

Exceptional mechanical build and haptics — reviewers call Schacht lenses 'mechanical and haptic delicacies' that could hardly be built to higher quality
Beautiful, art-object design and appearance ('looks like a work of art,' 'superb design')
The distinctive 16-bladed aperture
Sonnar heritage — designs attributed to Ludwig Bertele, inventor of the Sonnar, giving convincing optical performance
Good, acceptably sharp results in the mid-aperture range (f5.6–f11 on the 90mm)

ข้อเสีย

Considered overpriced and over-hyped by at least one reviewer, driven by scarcity rather than merit
Bokeh is only 'OK' and nothing special despite the multi-bladed aperture
Sharpness outside the mid-aperture range reportedly needs software correction
Value rated low (5/10 by one 90mm reviewer)

เทคนิคการใช้

Shoot the 90mm f2.8 in the f5.6–f11 range for its best, sharpest results with good corners and edges
For the 135mm, consider an M42 helicoid (macro focusing) adapter to both reach infinity and significantly shorten the otherwise long 150cm minimum focus distance
Adapt via a standard M42-to-mirrorless/DSLR adapter for the widest camera compatibility
Don't expect the 16-blade aperture alone to transform your bokeh — frame and light deliberately

แหล่งอ้างอิง (1)

Web-grounded synthesissecondary

The Schacht company was founded in Munich in 1948 by Albert Schacht, who had previously held a management position at Zeiss and Steinheil. From 1954 onward, Schacht manufactured its lenses in Ulm on the Danube (hence the 'Ulm' designation). According to the Nikolaus-Burgard review, almost all Schacht lenses are optical designs by Ludwig Bertele, the inventor of the Sonnar, meaning the Travenar line can be considered a direct development of the Zeiss Sonnar formula. The company was sold in 1967 and lens production ceased in 1970. Reviewers describe Schacht lenses as 'mechanical and haptic delicacies' that flew under the radar for decades and are only recently being rediscovered, with some arguing they deserve to be mentioned alongside Leica and Zeiss. No established community nicknames appear in the reviews. The cult following stems partly from the beautiful, art-object build and the 16-bladed aperture design, though at least one reviewer cautions the reputation may outpace real-world optical performance. The Travenar name covers multiple focal lengths (a 90mm f2.8 and a 135mm f3.5 are documented in these reviews).

https://www.pentaxforums.com/userreviews/schacht-ulm-travenar-90mm-f2-8.htmlhttps://www.nikolaus-burgard.de/objektivvorstellungen-lens-reviews/schacht-ulm/schacht-ulm-travenar-135mm-f3-5/