Because of the weakening of the Ottoman Empire conservative Janissaries blocked needed military reform and allowed their state to lose ground to European rivals. Also the weakness in technology included the imperial navy.
osmanlı giyim tarzı, örnek resimler & Ottoman style clothing, sample pictures & Chef du Corp of the Janissaries (general). The Vinkhuijzen collection of military uniforms / Turkey, See McLean’s Turkish Army of
Codex Vindobonensis 8626 Believed painted between 1586 and 1591 by an unknown south German artist in the entourage of Bartolemeo di Pezzana, ambassador of the Holy Roman Emperor Rudolph II to the Sublime Porte. Now in the Austrian National Library, Vienna