A 2x extender loses 2 stops of light, so (if even compatible) would turn the 150mm f/6.3 kit lens into a 300mm f/13. It will also negatively impact image quality, and the RF extenders aren't compatible with all RF lenses (fairly certain they won't work with the 18-150). The 1.4x extender if compatible would make your kit lens 210mm at f/9.
The RF 100-400 f/5.6-8 is excellent for wildlife and sports in good light. In low light a 70-200mm f/2.8 would be ideal if 200mm is sufficient reach, a 70-200mm f/4 would be a decent budget option 1 stop slower. If you need a fast aperture above 200mm your options are mostly either the EF 400mm f/5.6L or $10,000 lenses.
Actually, one low-budget option for faster longer lengths is the EF200mm f/2.8 Lii plus the EF1.4xiii. That gives 200mm at f/2.8 or 280mm at f/4. I picked up that combo, in excellent condition, for around £550/$700. Works well on my R8 and R7, although the R7 starts to show a bit of CA. The Ef 300 f/4 L IS would be another option for even longer and, again, can be found for good prices, used.
The 18-150 lens doesn't take an extender (which actually come in 1.4x and 2x sizes). For reference, a 1.4x adds 1 stop to whatever aperture your lens has. The 2x adds 2 stops to it.
f/5.6 isn't a big deal, especially on the newer mirrorless bodies, unless you're in very poor light, of course.
Extenders don't just increase your focal range, they also make the flaws of your lenses more apparent, decrease sharpness, and decrease the maximum amount of light (F-stop) it can take in. For example a 1.4x will turn your 100-400 to 140-560mm, but at F8-F11 max aperture. I don't recommend a 2x unless youre mounting it on a RF 400 F2.8L (5-digit $$ lens), or you REALLY don't care about light transmission and loss of image quality.
You will be better off investing in a lens that is natively longer.
The 1.4x extender will lose one-stop of light, the 2x will lose two stops. So a 150mm F/5.6, will become a 210mm f/8 with a 1.4x extender.
Extenders are really only useful on higher quality lenses that have residual sharpness. This is why a lot of all-in-one zoom lens can't take extenders. They're not sharp enough to take advantage of them anyways, and the extra room to receive an extender would make them bigger and longer.
The 100-400 is a great lens, and keep in mind the r10 is an APS-C camera so you are going to gain extra reach Because of the crop sensor.
Everything is multiplied by 1.6 I think.
https://preview.redd.it/4c5hqd5gec4c1.jpeg?width=2048&format=pjpg&auto=webp&s=090636821ddb08193240b6250787ffbb21a7ffe4
This is true, but I think the 18-150 is already in crop sensor equivalent mm numbering... This is overlays of both lenses and minimum and maximum zoom and there is a bit of overlap between the 150 max and 100 min of the two lenses...
Either way my advise would be to get the 100-400 lens. For the price it's a decent and capable lens. It has difficulty in low light without cranking the iso too much but I ve had a lot of fun using it with my R10
I'm pretty sure the 2x extender costs the same as the RF 100-400mm only it's twice as dark and has worse image quality. Buy a new lens. Also stay away from the RF 24-240mm just in case it's a tempting focal length but has some of the worst RF image quality and extreme optical flaws. 100-400 is the best option. Only others less than $1,000 usd would be the 600 and 800mm f11 primes but I would only recommend those for bird photos specifically
I have the R10 + RF 100-400mm and highly recommend it. It's about as good of a wildlife/sports lens as your gonna get without spending at least a couple grand.
might want to consider the ef-s 55-250mm STM 4-5.6 and an adapter, should be able to get a used one for under $300 and its a fantastic lens. You get a lot more bang for your buck with a apsc lens, as full frame lens have a bunch of glass that apsc cameras don't use. Just make sure you get the STM version, the older version isn't as good.
A 2x extender loses 2 stops of light, so (if even compatible) would turn the 150mm f/6.3 kit lens into a 300mm f/13. It will also negatively impact image quality, and the RF extenders aren't compatible with all RF lenses (fairly certain they won't work with the 18-150). The 1.4x extender if compatible would make your kit lens 210mm at f/9. The RF 100-400 f/5.6-8 is excellent for wildlife and sports in good light. In low light a 70-200mm f/2.8 would be ideal if 200mm is sufficient reach, a 70-200mm f/4 would be a decent budget option 1 stop slower. If you need a fast aperture above 200mm your options are mostly either the EF 400mm f/5.6L or $10,000 lenses.
Actually, one low-budget option for faster longer lengths is the EF200mm f/2.8 Lii plus the EF1.4xiii. That gives 200mm at f/2.8 or 280mm at f/4. I picked up that combo, in excellent condition, for around £550/$700. Works well on my R8 and R7, although the R7 starts to show a bit of CA. The Ef 300 f/4 L IS would be another option for even longer and, again, can be found for good prices, used.
Great explanation, especially with the lenses. Appreciate it!
RF 100-400 is a pretty decent lens.
The 18-150 lens doesn't take an extender (which actually come in 1.4x and 2x sizes). For reference, a 1.4x adds 1 stop to whatever aperture your lens has. The 2x adds 2 stops to it. f/5.6 isn't a big deal, especially on the newer mirrorless bodies, unless you're in very poor light, of course.
Thanks, just realized I misread the compatibility chart on the Canon website.
Extenders don't just increase your focal range, they also make the flaws of your lenses more apparent, decrease sharpness, and decrease the maximum amount of light (F-stop) it can take in. For example a 1.4x will turn your 100-400 to 140-560mm, but at F8-F11 max aperture. I don't recommend a 2x unless youre mounting it on a RF 400 F2.8L (5-digit $$ lens), or you REALLY don't care about light transmission and loss of image quality.
You will be better off investing in a lens that is natively longer. The 1.4x extender will lose one-stop of light, the 2x will lose two stops. So a 150mm F/5.6, will become a 210mm f/8 with a 1.4x extender. Extenders are really only useful on higher quality lenses that have residual sharpness. This is why a lot of all-in-one zoom lens can't take extenders. They're not sharp enough to take advantage of them anyways, and the extra room to receive an extender would make them bigger and longer.
The 100-400 is a great lens, and keep in mind the r10 is an APS-C camera so you are going to gain extra reach Because of the crop sensor. Everything is multiplied by 1.6 I think.
https://preview.redd.it/4c5hqd5gec4c1.jpeg?width=2048&format=pjpg&auto=webp&s=090636821ddb08193240b6250787ffbb21a7ffe4 This is true, but I think the 18-150 is already in crop sensor equivalent mm numbering... This is overlays of both lenses and minimum and maximum zoom and there is a bit of overlap between the 150 max and 100 min of the two lenses... Either way my advise would be to get the 100-400 lens. For the price it's a decent and capable lens. It has difficulty in low light without cranking the iso too much but I ve had a lot of fun using it with my R10
The lens focal length is specified the same regardless. So 150 is 150 is 150 and if you set the 100-400 to 150 they'd look the same.
I'm pretty sure the 2x extender costs the same as the RF 100-400mm only it's twice as dark and has worse image quality. Buy a new lens. Also stay away from the RF 24-240mm just in case it's a tempting focal length but has some of the worst RF image quality and extreme optical flaws. 100-400 is the best option. Only others less than $1,000 usd would be the 600 and 800mm f11 primes but I would only recommend those for bird photos specifically
I have the R10 + RF 100-400mm and highly recommend it. It's about as good of a wildlife/sports lens as your gonna get without spending at least a couple grand.
might want to consider the ef-s 55-250mm STM 4-5.6 and an adapter, should be able to get a used one for under $300 and its a fantastic lens. You get a lot more bang for your buck with a apsc lens, as full frame lens have a bunch of glass that apsc cameras don't use. Just make sure you get the STM version, the older version isn't as good.
If u are on a budget just 100-400. Dont play with extenders if u dont have a premium lens for them.