aaron_p.

<p>Both FF and Crop, but not fully optimized to either...</p>

<p>I think the costs of going FF would be covered by selling all those lenses I wouldn't need anymore. On the other hand, MI's 80D option ends up with money in my pocket.</p> <p>1998-2005 my setup was this:<br /> EOS 3 + Elan IIe<br /> EF 17-35 2.8 L<br /> EF 50 1.4<br /> EF 70-200 2.8 L<br /> Sigma 105 Macro<br /> 2X</p> <p>It worked great except I had to change lenses constantly due to the lack of a standard zoom. I loved 2.8 L lenses (of course there were few IS lenses then). I loved the EOS-3. When I went to the 20D in 05 was about the end of when I was making money from photography, even with my now unused 4x5 (which I am also going to sell now too *sniffle*) since then it is all for fun.</p> <p>I worry about losing f/2.8. If I go to FF and have all f/4 lenses, I'll have the same DoF as f/2.8 on my APS-C. I also worry about AF performance. If I get an 80D, don't all the fancy cross sensors need f/2.8? A 24MP Rebel T6S with it's rear control dial and the 7D's AF sensors starts looking attractive re size/weight if I stay with APS-C.</p> <p>On the other hand, 2.8 weighs a lot and costs a lot... and any day a lens is left behind because it is bulky or heavy... "The best lens is the one you use."</p>

<p><strong>Background:</strong><br> I've been shooting EOS since 1997 when I switched over from FD. I went digital in 2005. Shooting moved from portraiture and food to skiing, landscapes, travel, and backpacking. My wife and I acquired quite the setup and lens quiver. But we've been so busy the last 3 years. I realized I need to reduce the quiver of lenses, and maybe realign things. Here is what I have:</p> <p><strong>Bodies</strong><br> 5D Mk1<br> 40D</p> <p><strong>Zooms:</strong><br> Tokina 10-17mm Fisheye<br> EFS 10-22mm 3.5-4.5 USM<br> EFS 17-55mm 2.8 IS USM<br> Sigma 18-125mm 3.5-5.6 OS HSM<br> Sigma 18-200mm 3.5-6.3 OS<br> Sigma 50-150mm 2.8 EX HSM Mk2<br> EF 70-200mm 2.8 L USM<br> EF 70-300mm 4-5.6 IS USM</p> <p><strong>Primes:</strong><br> Sigma 24mm 1.8 EX<br> Canon 50mm 1.8 Mk1<br> Canon 50mm 1.4 USM<br> Sigma 105mm 2.8 EX 1:1 Macro</p> <p><strong>TC</strong><br> Sigma 1.4x<br> Sigma 2x APO EX</p> <p><strong>THE PLAN:</strong><br> Now our photography is mostly travel and landscapes with some skiing and astrophotography. I wanted to simplify, so I was thinking of selling most everything and end up with a simple quiver like my 5 lens setup back when I had my EOS 3 in 2004. <strong><br /></strong></p> <p><strong>FIVE QUESTIONS:</strong><br> <strong> </strong><br> <strong>Body: </strong><strong>6D <strong>- </strong></strong>seems perfect for everything except am I going to regret dropping down to 4.5fps?</p> <p><strong>Lenses:</strong><br> <strong>Wide Angle/Zoom:</strong> Sigma 24mm 1.8 EX or return to a EF 16/17-35mm 2.8 L USM? <br> <strong>Primary:</strong> EF 24-105mm 4 L IS USM ... f/4 is slow... or I could get the Tamron 24-70mm 2.8 IS USM? But then would I need a 28-300 as a walk around?<br> <strong>Tele Zoom: </strong>70-200 2.8 L USM or do I surrender to the amazing usefulness of IS and upgrade to f/2.8 IS or the much lighter and easier to travel with f/4 IS?<br> <strong>Fast:</strong> EF 50mm 1.4 USM (I'll cry when I sell the 1.8 Mk1, what a gem)<br> <strong>Macro:</strong> Sigma 105mm 2.8 EX or upgrade to an EF (or Sigma) 100mm IF IS USM?</p>