CATTA ZOOM
Please select your product; we have listed some of the most frequently asked questions for you.
问题类型
All
Compare
Accessories
Focusing
Mount
What is the size of the front lens cap of Catta zoom?
Is the shim box universal?
How to adjust the back focus?
What should I do if the mount becomes loose?
How to change the quick release mount?
What are the differences between Catta Ace and Catta zoom?
![](data:image/svg+xml,<svg display="block" role="presentation" viewBox="0 0 43 27" xmlns="http://www.w3.org/2000/svg"><path d="M 5.998 11.187 C 8.049 11.187 9.686 9.558 9.594 7.609 C 9.686 5.66 8.049 4.032 5.998 4.032 C 3.946 4.032 2.309 5.66 2.402 7.609 C 2.309 9.558 3.946 11.187 5.998 11.187 Z M 5.998 13.618 C 2.56 13.618 -0.174 10.875 0.009 7.609 C -0.041 5.5 1.086 3.522 2.973 2.409 C 4.802 1.254 7.181 1.254 9.011 2.409 C 10.868 3.492 11.993 5.421 11.975 7.494 L 11.975 7.609 L 11.987 7.609 C 12.17 10.875 9.436 13.618 5.998 13.618 Z M 13.171 2.409 C 12.511 2.409 11.975 1.899 11.975 1.271 C 11.896 0.592 12.454 0 13.171 0 C 13.888 0 14.446 0.592 14.368 1.271 C 14.368 1.899 13.832 2.409 13.171 2.409 Z" fill="rgb(153, 153, 153)" height="13.618421280523684px" id="gLRKei_eO" transform="translate(15.003 6.382)" width="14.375224059059507px"/><path d="M 6.28 27 L 0 20.87 L 0 6.13 L 6.28 0 L 36.912 0 L 43.192 6.13 L 43.192 20.87 L 43.041 21.017 L 36.912 27 Z M 42.192 6.551 L 36.504 1 L 6.687 1 L 1 6.551 L 1 20.449 L 6.687 26 L 36.504 26 L 42.192 20.449 Z" fill="rgb(153, 153, 153)" height="27px" id="k26lQwxi8" width="43.191635px"/></svg>)
![](data:image/svg+xml,<svg display="block" role="presentation" viewBox="0 0 43 27" xmlns="http://www.w3.org/2000/svg"><path d="M 0 13 L 10.548 6.5 L 0 0 Z" fill="rgb(153, 153, 153)" height="13px" id="YYKTeegNX" transform="translate(17.64 7)" width="10.547910000000002px"/><path d="M 6.28 27 L 0 20.87 L 0 6.13 L 6.28 0 L 36.912 0 L 43.192 6.13 L 43.192 20.87 L 43.041 21.017 L 36.912 27 Z M 42.192 6.551 L 36.504 1 L 6.687 1 L 1 6.551 L 1 20.449 L 6.687 26 L 36.504 26 L 42.192 20.449 Z" fill="rgb(153, 153, 153)" height="27px" id="VmqdrW0GA" width="43.191635px"/></svg>)
![](data:image/svg+xml,<svg display="block" role="presentation" viewBox="0 0 43 27" xmlns="http://www.w3.org/2000/svg"><path d="M 2.011 19.497 L 2.011 9.737 L 0 9.737 L 0 6.5 L 2.011 6.5 L 2.011 4.542 C 2.011 1.903 2.811 0 5.743 0 L 9.229 0 L 9.229 3.229 L 6.775 3.229 C 5.545 3.229 5.265 4.035 5.265 4.879 L 5.265 6.503 L 9.048 6.503 L 8.532 9.737 L 5.265 9.737 L 5.265 19.5 L 2.011 19.5 L 2.011 19.497 Z" fill="rgb(153, 153, 153)" height="19.500002px" id="BB3yA8DzS" transform="translate(17.64 7)" width="9.2294226px"/><path d="M 6.28 27 L 0 20.87 L 0 6.13 L 6.28 0 L 36.912 0 L 43.192 6.13 L 43.192 20.87 L 43.041 21.017 L 36.912 27 Z M 42.192 6.551 L 36.504 1 L 6.687 1 L 1 6.551 L 1 20.449 L 6.687 26 L 36.504 26 L 42.192 20.449 Z" fill="rgb(153, 153, 153)" height="27px" id="syEKeQMBy" width="43.191635px"/></svg>)
![](data:image/svg+xml,<svg display="block" role="presentation" viewBox="0 0 43 27" xmlns="http://www.w3.org/2000/svg"><g d="M 0 23.663 L 0 0 L 23.259 0 L 23.259 23.663 Z M 18.388 13.446 C 18.845 13.44 19.214 13.064 19.22 12.599 C 19.22 12.129 18.85 11.752 18.388 11.752 C 17.926 11.752 17.556 12.129 17.556 12.599 C 17.556 13.071 17.927 13.446 18.388 13.446 Z M 14.289 13.446 C 14.746 13.44 15.115 13.064 15.121 12.599 C 15.121 12.129 14.75 11.752 14.289 11.752 C 13.825 11.752 13.457 12.129 13.457 12.599 C 13.457 13.071 13.826 13.446 14.289 13.446 Z M 20.373 18.2 C 20.251 18.269 20.186 18.41 20.213 18.549 C 20.213 18.595 20.213 18.641 20.236 18.688 C 20.327 19.081 20.509 19.708 20.509 19.731 C 20.509 19.8 20.532 19.846 20.532 19.893 C 20.532 20.008 20.44 20.102 20.327 20.101 C 20.281 20.101 20.259 20.078 20.213 20.056 L 18.871 19.267 C 18.773 19.212 18.664 19.181 18.552 19.175 C 18.484 19.175 18.416 19.175 18.371 19.197 C 17.733 19.383 17.073 19.476 16.368 19.476 C 12.978 19.476 10.247 17.158 10.247 14.283 C 10.247 11.409 12.978 9.09 16.368 9.09 C 19.758 9.09 22.489 11.409 22.489 14.283 C 22.489 15.836 21.67 17.25 20.373 18.201 Z M 14.395 15.848 C 14.281 16.166 14.006 16.27 13.57 16.16 C 13.539 16.16 13.504 16.16 13.468 16.16 C 13.049 16.163 12.449 16.194 11.669 16.255 L 11.656 16.256 L 9.454 16.311 L 9.445 16.31 C 8.586 16.302 7.743 16.179 6.916 15.944 L 6.905 15.94 C 6.896 15.94 6.881 15.94 6.862 15.94 C 6.816 15.941 6.774 15.953 6.735 15.978 L 6.729 15.982 L 5.09 16.941 L 5.076 16.948 L 5.074 16.949 C 4.941 17.017 4.817 17.051 4.701 17.051 C 4.202 17.045 3.95 16.79 3.945 16.284 C 3.945 16.188 3.965 16.082 4.006 15.966 C 4.011 15.953 4.014 15.943 4.016 15.937 L 4.053 15.824 L 4.055 15.823 C 4.056 15.82 4.057 15.817 4.058 15.814 C 4.08 15.737 4.109 15.634 4.144 15.504 C 4.216 15.242 4.28 14.995 4.337 14.764 C 4.341 14.738 4.345 14.709 4.351 14.678 L 4.351 14.678 C 2.514 13.349 1.595 11.647 1.595 9.572 C 1.595 7.692 2.376 6.093 3.938 4.776 C 5.472 3.482 7.317 2.836 9.473 2.836 C 11.309 2.836 12.941 3.321 14.37 4.293 C 15.802 5.265 16.72 6.51 17.123 8.025 L 17.14 8.09 L 17.14 8.103 C 17.406 9.339 17.457 10.186 17.291 10.642 C 17.119 11.117 16.797 11.301 16.324 11.194 C 16.203 11.199 16.14 11.222 16.135 11.263 C 16.116 11.406 16.178 11.741 16.321 12.268 C 16.486 12.877 16.575 13.334 16.586 13.641 C 16.61 14.257 16.426 14.735 16.033 15.075 C 15.572 15.473 15.03 15.603 14.408 15.466 C 14.453 15.573 14.449 15.701 14.395 15.848 Z M 12.938 15.149 C 12.979 14.708 13.124 14.421 13.374 14.288 C 13.593 14.171 13.902 14.195 14.3 14.36 C 14.748 14.545 15.102 14.525 15.363 14.299 C 15.605 14.091 15.595 13.503 15.333 12.537 C 15.154 11.877 15.083 11.408 15.119 11.13 C 15.203 10.494 15.616 10.174 16.358 10.169 C 16.409 9.839 16.333 9.208 16.129 8.273 C 15.789 7.011 15.011 5.966 13.795 5.14 C 12.539 4.287 11.098 3.86 9.473 3.86 C 7.566 3.86 5.941 4.426 4.598 5.559 C 3.279 6.672 2.619 8.009 2.619 9.572 C 2.619 11.302 3.4 12.729 4.961 13.855 L 4.967 13.859 L 4.974 13.864 C 5.242 14.071 5.377 14.345 5.378 14.686 C 5.378 14.734 5.372 14.794 5.358 14.864 L 5.356 14.849 L 5.356 14.912 L 5.341 14.972 C 5.269 15.265 5.204 15.515 5.145 15.722 L 6.199 15.105 C 6.395 14.984 6.609 14.92 6.84 14.916 C 6.986 14.915 7.108 14.931 7.205 14.961 C 7.938 15.169 8.686 15.277 9.447 15.286 L 11.604 15.232 C 12.124 15.192 12.569 15.164 12.938 15.149 Z M 4.354 14.683 L 4.354 14.689 C 4.354 14.687 4.354 14.685 4.354 14.683 Z M 5.979 7.506 C 5.979 8.047 6.399 8.474 6.929 8.474 C 7.46 8.474 7.881 8.024 7.881 7.506 C 7.881 6.966 7.46 6.538 6.929 6.538 C 6.399 6.538 5.979 6.966 5.979 7.506 Z M 10.852 7.506 C 10.852 8.047 11.272 8.474 11.802 8.474 C 12.333 8.474 12.753 8.024 12.753 7.506 C 12.753 6.966 12.333 6.538 11.802 6.538 C 11.272 6.538 10.852 6.966 10.852 7.506 Z" fill="transparent" height="23.663413070869154px" id="Ie4gR0qUm" transform="translate(9.512 1.572)" width="23.259145782488147px"><path d="M 0 23.663 L 0 0 L 23.259 0 L 23.259 23.663 Z" fill="rgba(0, 0, 0, 0)" height="23.663413071050876px" id="oli0qEMZr" transform="translate(0 0)" width="23.259145783215033px"/><path d="M 8.141 4.356 C 8.598 4.35 8.967 3.974 8.973 3.509 C 8.973 3.039 8.603 2.662 8.141 2.662 C 7.678 2.662 7.309 3.039 7.309 3.509 C 7.309 3.981 7.679 4.356 8.141 4.356 Z M 4.041 4.356 C 4.498 4.35 4.867 3.974 4.873 3.509 C 4.873 3.039 4.503 2.662 4.041 2.662 C 3.578 2.662 3.209 3.039 3.209 3.509 C 3.209 3.981 3.579 4.356 4.041 4.356 Z M 10.125 9.11 C 10.003 9.179 9.939 9.32 9.966 9.459 C 9.966 9.505 9.966 9.551 9.989 9.598 C 10.08 9.991 10.261 10.618 10.261 10.641 C 10.261 10.71 10.285 10.756 10.285 10.804 C 10.285 10.919 10.193 11.012 10.08 11.011 C 10.033 11.011 10.011 10.988 9.966 10.966 L 8.623 10.177 C 8.525 10.122 8.416 10.091 8.305 10.085 C 8.237 10.085 8.168 10.085 8.123 10.107 C 7.486 10.293 6.826 10.386 6.121 10.386 C 2.73 10.386 0 8.068 0 5.193 C 0 2.319 2.73 0 6.121 0 C 9.511 0 12.241 2.319 12.241 5.193 C 12.241 6.746 11.422 8.16 10.125 9.111 Z" fill="rgb(153, 153, 153)" height="11.011057194726964px" id="Br5NMeMY9" transform="translate(10.247 9.09)" width="12.241159174366135px"/><path d="M 12.8 13.013 C 12.686 13.33 12.411 13.434 11.975 13.324 C 11.943 13.324 11.909 13.324 11.872 13.324 C 11.454 13.327 10.854 13.359 10.074 13.419 L 10.061 13.42 L 7.859 13.475 L 7.85 13.475 C 6.991 13.466 6.148 13.344 5.321 13.108 L 5.309 13.105 C 5.3 13.104 5.286 13.104 5.267 13.104 C 5.221 13.105 5.179 13.118 5.14 13.142 L 5.134 13.146 L 3.495 14.106 L 3.481 14.112 L 3.479 14.114 C 3.346 14.182 3.222 14.215 3.106 14.215 C 2.607 14.21 2.355 13.954 2.349 13.449 C 2.349 13.353 2.37 13.247 2.411 13.131 C 2.416 13.117 2.419 13.107 2.421 13.101 L 2.458 12.989 L 2.46 12.987 C 2.461 12.984 2.462 12.981 2.463 12.978 C 2.485 12.902 2.514 12.798 2.549 12.669 C 2.621 12.406 2.685 12.159 2.742 11.929 C 2.745 11.902 2.75 11.873 2.756 11.842 L 2.756 11.842 C 0.919 10.513 0 8.811 0 6.736 C 0 4.856 0.781 3.258 2.343 1.94 C 3.877 0.647 5.721 0 7.877 0 C 9.713 0 11.346 0.486 12.775 1.457 C 14.207 2.43 15.124 3.674 15.527 5.189 L 15.545 5.254 L 15.545 5.267 C 15.811 6.504 15.862 7.35 15.696 7.807 C 15.524 8.282 15.201 8.466 14.729 8.359 C 14.608 8.364 14.545 8.387 14.54 8.428 C 14.521 8.57 14.583 8.905 14.726 9.433 C 14.891 10.041 14.98 10.498 14.991 10.805 C 15.015 11.422 14.83 11.9 14.438 12.239 C 13.977 12.637 13.435 12.768 12.812 12.631 C 12.857 12.738 12.853 12.865 12.8 13.013 Z M 11.343 12.314 C 11.384 11.873 11.529 11.586 11.779 11.452 C 11.998 11.335 12.307 11.359 12.705 11.524 C 13.152 11.71 13.507 11.69 13.768 11.464 C 14.01 11.255 14 10.667 13.738 9.701 C 13.559 9.041 13.488 8.572 13.524 8.294 C 13.608 7.659 14.021 7.338 14.763 7.333 C 14.814 7.004 14.737 6.372 14.533 5.438 C 14.194 4.175 13.416 3.131 12.2 2.304 C 10.944 1.451 9.503 1.024 7.877 1.024 C 5.971 1.024 4.346 1.591 3.003 2.723 C 1.684 3.836 1.024 5.174 1.024 6.736 C 1.024 8.466 1.805 9.894 3.366 11.019 L 3.372 11.024 L 3.379 11.028 C 3.647 11.235 3.782 11.509 3.783 11.85 C 3.783 11.899 3.777 11.958 3.763 12.029 L 3.761 12.014 L 3.761 12.076 L 3.746 12.136 C 3.674 12.429 3.609 12.679 3.55 12.886 L 4.604 12.269 C 4.8 12.148 5.014 12.085 5.245 12.08 C 5.391 12.08 5.513 12.095 5.61 12.125 C 6.343 12.334 7.091 12.442 7.852 12.45 L 10.008 12.397 C 10.529 12.356 10.974 12.329 11.343 12.314 Z M 2.758 11.848 L 2.759 11.853 C 2.759 11.851 2.759 11.849 2.758 11.848 Z" fill="rgb(153, 153, 153)" height="14.215359948493736px" id="gd3JZ_4KH" transform="translate(1.595 2.836)" width="15.791221234487974px"/><path d="M 0 0.968 C 0 1.508 0.421 1.936 0.951 1.936 C 1.481 1.936 1.902 1.486 1.902 0.968 C 1.902 0.427 1.481 0 0.951 0 C 0.421 0 0 0.427 0 0.968 Z M 4.873 0.968 C 4.873 1.508 5.293 1.936 5.824 1.936 C 6.355 1.936 6.774 1.486 6.774 0.968 C 6.774 0.427 6.355 0 5.824 0 C 5.293 0 4.873 0.427 4.873 0.968 Z" fill="rgb(153, 153, 153)" height="1.9356364891053612px" id="gMaPkz8GR" transform="translate(5.979 6.538)" width="6.774188851777463px"/></g><path d="M 6.235 27.659 L 0 21.374 L 0 6.284 L 6.235 0 L 36.643 0 L 42.878 6.284 L 42.878 21.374 L 42.729 21.524 L 36.643 27.659 Z M 41.854 6.706 L 36.217 1.024 L 6.661 1.024 L 1.024 6.706 L 1.024 20.953 L 6.661 26.634 L 36.217 26.634 L 41.854 20.953 Z" fill="rgb(153, 153, 153)" height="27.658536585365855px" id="jorPlxop0" transform="translate(0 -0.33)" width="42.87804175609756px"/></svg>)
![](data:image/svg+xml,<svg display="block" role="presentation" viewBox="0 0 43 27" xmlns="http://www.w3.org/2000/svg"><path d="M 12.731 0.305 C 13.114 0.696 13.114 1.33 12.731 1.721 L 11.834 2.635 L 12.752 2.635 C 14.378 2.635 15.696 3.98 15.695 5.639 L 15.695 11.646 C 15.695 13.304 14.378 14.649 12.752 14.649 L 2.943 14.649 C 1.318 14.649 0 13.304 0 11.646 L 0 5.639 C 0 3.98 1.318 2.636 2.943 2.636 L 3.858 2.636 L 2.962 1.721 C 2.568 1.333 2.562 0.689 2.95 0.293 C 3.338 -0.102 3.968 -0.097 4.349 0.305 L 6.43 2.429 C 6.492 2.493 6.544 2.561 6.586 2.635 L 9.107 2.635 C 9.149 2.561 9.201 2.491 9.263 2.428 L 11.344 0.305 C 11.727 -0.086 12.348 -0.086 12.731 0.305 Z M 12.752 4.645 L 2.943 4.645 C 2.429 4.645 2.002 5.049 1.964 5.572 L 1.962 5.647 L 1.962 11.654 C 1.962 12.181 2.362 12.614 2.87 12.651 L 2.943 12.655 L 12.752 12.655 C 13.266 12.655 13.693 12.251 13.731 11.728 L 13.733 11.654 L 13.733 5.647 C 13.733 5.095 13.294 4.646 12.752 4.646 Z M 4.905 6.647 C 5.446 6.647 5.886 7.096 5.886 7.648 L 5.886 8.65 C 5.886 9.202 5.446 9.651 4.905 9.651 C 4.363 9.651 3.924 9.202 3.924 8.65 L 3.924 7.648 C 3.924 7.096 4.363 6.647 4.905 6.647 Z M 10.79 6.647 C 11.332 6.647 11.771 7.096 11.771 7.648 L 11.771 8.65 C 11.771 9.202 11.332 9.651 10.79 9.651 C 10.249 9.651 9.809 9.202 9.809 8.65 L 9.809 7.648 C 9.809 7.096 10.249 6.647 10.79 6.647 Z" fill="rgb(153, 153, 153)" height="14.648779520910622px" id="Hj12XRHU5" transform="translate(13.829 5.89)" width="15.695120452005867px"/><path d="M 6.235 27.659 L 0 21.374 L 0 6.284 L 6.235 0 L 36.643 0 L 42.878 6.284 L 42.878 21.374 L 42.729 21.524 L 36.643 27.659 Z M 41.854 6.706 L 36.217 1.024 L 6.661 1.024 L 1.024 6.706 L 1.024 20.953 L 6.661 26.634 L 36.217 26.634 L 41.854 20.953 Z" fill="rgb(153, 153, 153)" height="27.658536585365855px" id="AgPJF4fHG" transform="translate(0 -0.33)" width="42.87804175609756px"/></svg>)
![](data:image/svg+xml,<svg display="block" role="presentation" viewBox="0 0 1517 336" xmlns="http://www.w3.org/2000/svg"><path d="M 119.585 145.377 L 125.678 165.551 L 131.702 145.353 L 175.054 0 L 251.078 0 L 247.225 11.608 L 152.479 296 L 98.066 296 L 0 0 L 75.63 0 Z M 16.075 11.608 L 106.434 284.392 L 144.11 284.392 L 234.991 11.608 L 183.701 11.608 L 136.798 168.871 L 114.571 168.906 L 67.006 11.608 Z M 541.759 65.294 L 541.759 296 L 468.578 296 L 468.578 65.294 L 395.537 65.294 L 395.537 0 L 614.928 0 L 614.928 65.294 Z M 530.152 284.392 L 530.152 53.686 L 603.322 53.686 L 603.322 11.608 L 407.144 11.608 L 407.144 53.686 L 480.185 53.686 L 480.185 284.392 Z M 999.717 219.237 L 999.717 230.845 L 1124.723 230.845 L 1124.723 296 L 926.687 296 L 926.687 0 L 999.729 0 L 999.729 219.237 Z M 988.122 242.453 L 988.122 11.608 L 938.294 11.608 L 938.294 284.392 L 1113.116 284.392 L 1113.116 242.453 Z M 1429.68 65.294 L 1429.68 296 L 1356.499 296 L 1356.499 65.294 L 1283.457 65.294 L 1283.457 0 L 1502.849 0 L 1502.849 65.294 Z M 1418.073 284.392 L 1418.073 53.686 L 1491.242 53.686 L 1491.242 11.608 L 1295.064 11.608 L 1295.064 53.686 L 1368.106 53.686 L 1368.106 284.392 Z M 355.551 296 L 282.51 296 L 282.51 0 L 355.551 0 Z M 294.116 11.608 L 294.116 284.392 L 343.944 284.392 L 343.944 11.608 Z M 895.372 284.392 L 899.62 296 L 823.039 296 L 809.308 252.471 L 717.765 252.471 L 703.21 296 L 626.767 296 L 631.004 284.392 L 734.896 0 L 791.352 0 Z M 883.011 284.392 L 783.239 11.608 L 743.021 11.608 L 643.365 284.392 L 694.853 284.392 L 709.408 240.863 L 817.815 240.863 L 831.546 284.392 Z M 1243.472 296 L 1170.43 296 L 1170.43 0 L 1243.472 0 Z M 1182.037 11.608 L 1182.037 284.392 L 1231.865 284.392 L 1231.865 11.608 Z M 753.967 108.789 L 776.019 108.974 L 806 203.137 L 722.141 203.137 Z M 790.133 191.529 L 786.419 179.922 L 770.912 131.169 L 764.958 112.492 L 758.69 131.064 L 742.209 179.922 L 738.297 191.529 Z" fill="rgb(255, 255, 255)" height="296px" id="yr0S_nuVq" transform="translate(7 20.125)" width="1502.8492273582206px"/></svg>)