FS7: FS7 Lenses
- Thread starter Woolfmusher
- Start date
Thanks, in my case I have Nikon DSLR's and all my lenses are Nikon mount except for the SLP18105. I use the Nikon version of the Speedbooster Ultra to mate the Nikkors and the Tamron SP 15-30 to the FS7.
Take it EZ,
Robert
David Kudell
Active member
I just bought the Sigma 24-105 last week. So far I like it after 1 shoot. The image quality is great, although one thing to be aware of is that it's not parfocal. So every time you zoom you need to focus again. I don't think the Canon is as bad. Also, the focus ring is somewhat small, as well as it being closer to the lens, with the zoom being farther (opposite of the Canons where the focus is after the zoom).
For these reasons, the Sigma is taking some getting used to, and I feel like it's going to slow me down in getting the shot a bit in documentary style shooting. However, the trade-off is good image quality, quite a bit better than the Canon at the wide end, with the Canon being sharper at 105mm. For $799 there are going to be trade-offs of course. That's why cinema lenses are $20K+ for a good zoom.
For these reasons, the Sigma is taking some getting used to, and I feel like it's going to slow me down in getting the shot a bit in documentary style shooting. However, the trade-off is good image quality, quite a bit better than the Canon at the wide end, with the Canon being sharper at 105mm. For $799 there are going to be trade-offs of course. That's why cinema lenses are $20K+ for a good zoom.
dmitrizigany
Veteran
I bought my A7S from them. Quick delivery (to Germany). No problems.
David Kudell
Active member
You're lucky indeed. I haven't heard of anyone getting a parfocal copy. Maybe I should return mine and try another...
Lenilenapi
Carbonite Member
odd lens. I also had a copy that was wildly un par focal so I returned it. But I've heard from a number of people that their's hold focus.
moldcad
Veteran
May we know which adapter you're using with the Sigma?
And this is why I'm so happy I did buy my kit 28-135 lens, after all!
Piotr
moldcad
Veteran
So, my dear Friends, what would you advise considering all I said in this thread about my special needs and limitations:
1. CANON EF-S 17-55MM F2.8 in the cheap Commlite adapter (which is said to be compatible)
-or
2. CANON EF 24-70 F4.0 L in the more expensive Metabones SpeedBooster Ultra?
Please advise!
Piotr
1. CANON EF-S 17-55MM F2.8 in the cheap Commlite adapter (which is said to be compatible)
-or
2. CANON EF 24-70 F4.0 L in the more expensive Metabones SpeedBooster Ultra?
Please advise!
Piotr
morgan_moore
Major Contributor
If you buy a speed booster you are opening up other options for making primes very fast. and also keeping your chip clean when changing lenses and have coverage if you ever go fullframe (maybe a bcam?)
I would personally google some reviews or '17-55 canon broken' or suchlike to see which is least badly put together.
But really you are choosing two identical solutions.
S
I would personally google some reviews or '17-55 canon broken' or suchlike to see which is least badly put together.
But really you are choosing two identical solutions.
S
I think manufacturing variation and/or quality control is maybe why the Canon has a bad rep in some circles. The first lens I had on my FS7 was the 24-105 f4 L and that one looked really good. Sharp and clean. t. I did not do charts and did not shoot much at 24 so maybe it was soft on that end. The rental rep where I bought my FS7 is a stills guy primarily and he has shot charts with the 24-105's and he likes it quite a bit.
If I can get a parfocal Sigma 24-105 that would be good as I can get it in a Nikon mount. When I do streaming I often zoom wide during audience participation times and the short breaks. Since we are live I prefer to not have to touch the focus.
i appreciate Piotr for letting me invade his thread and the rest of you for the helpful comments.
Hope you folks have a good day or night,
Robert
With my Sigma, i can set focus zoomed in, and it looks parfocal when i zoom out. Zoom back in, and subject is in focus.
But i cant really set focus on the wide end, and expect anything to really be in focus when i zoom in.
Ive heard people badmouth the Sigma for being anything but parfocal, so i guess you would need to try a few copies before you get lucky? Mine is very nice, and close to parfocal.
Chadfish
Veteran
It could be that when you focus on the wide end, you're not really in sharp focus in the first place. It just looks close to your eye or to the peaking. WHen I shoot a wide shot I always zoom into the subject, focus, then zoom out, then start rolling.
Chadfish
Veteran
You asked for it...
I strongly encourage you to just bite the bullet and get the SpeedBooster Ultra. It makes everything a bit wider to the point the lenses are at the most usable focal lengths. You usually need wider shots when shooting people or indoors. That Ultra gives you a much needed extra stop of light too as you know. Don't cheap out on something that is the bottlneck of every image that flows through your camera. You will eventually replace your camera and keep all your glass. If you can't afford it, wait and save. I say get the Ultra for Canon mount because not only are Canon lenses all available, but many other companies do canon mounts. You want lighter stuff with IS? Try the canon 16-35 f4 with IS. Try the canon 24-105 f/4 with IS, or the sharper Sigma version. But the sigma is a half pound heavier. Or get the Sigma 24-105 f/4 for use on tripod, and grab a reasonable prime for hand held, like the Canon 35mm f2 IS USM for 550.00. It becomes an f1.4 with the Ultra! That's great for low light. THEN once you have good useful lenses with IS, you can branch out to specialty lenses, or drop 100.00 on the comlite if you found some aps-c lens that strikes your fancy. But for now you just need a workhorse lens that covers 95% of what you will shoot, and that's something like the 24-105, or a 24-70mm range - but with the Ultra. Otherwise your wide end will be 36mm with the comlite and the FS7/5's 1.5 crop. Trust me, wider is better most of the time. It seems like you are going round and round in circles trying to save as much money as possible. That's fine, and I get your limitations, because I have the exact same ones, having broke my neck and ruined my back with multiple disks injured, preventing me from carrying a lot of weight. That's one reason I got the FS5 - it's so light. Anyway, I'm rambling. In conclusion, suck it up and spend the 650.00 on the ULtra, then look for a used Canon 24-105 f/4 at a great price (they are definitely out there in droves) and start shooting. Then branch out from there. You will never think of that money again once you get the proper gear.
Cheers.
Lenilenapi
Carbonite Member
tamron 24-70. very good glass and all important it is the only 24-70 with IS. unfortunately it focuses in reverse direction.
moldcad
Veteran
I'm leaning to it. But let me ask an all-important question: suppose I buy a nice full frame lens to work with the SpeedBooster - reasonably wide, not suffering from barrel distortion at the wide end (like 24-70mm); will the Speedbooster not add that distortion by making it 0.71x wider? Or even more important: I fancy an even wider lens, starting with say 16-18mm focal length but with still acceptable wide end geometry; won't the Speedbooster introduce an unacceptably bigger barrel? Thanks,
Piotr
Piotr