Originally posted by kaiserz That's awesome Heegz, I'm also planning to get the 40mm, I'm new to this photography thing, but people said I'm doing extremely well on it(For a guy who just had his first camera 2 months ago). Right now my main lens are the FA 28-108 with PZ(Got it as a gift for xmas brand new! woot!) an M 50mm 1.7 and the DA 35mm 2.4.(I also have the 18- 55 and 55 - 300 kit lens that I don't use) would you suggest that I get the DA 40mm 2.8 or should I invest in flash first? or should I go for a FA/F 50 1.4 vs the DA 40 2.8? And I will be looking forwards to your "thoughts/review" on the 40mm
These are some great and essential questions. If you are using the 50 f1.7 than you can hold off on the 50 f1.4. My brother gave me his for Christmas this year so I didn't actually purchase mine. I plan on using the 50 f1.4 exclusively for portraits, though I forced myself to use it for Christmas parties. It is too long for indoor use in my opinion. The 35mm f2.4 is much better for indoors though I've had to push my K-7 to it's ISO limits to use it in dim lighting. The main reason I chose the 40mm is because the 50 f1.4 hunted a LOT more than expected in dim light (wide open) and also both the 35mm and 50mm are of average length with a lens hood attached. The 40mm with lens hood is by far the smallest option and that is my main purchasing decision. I would rather have the 21mm and 43mm for photographic reasons, however, I chose the 40mm instead with physical size as my deciding factor.
Once the 40mm arrives (Thursday) I plan on making a new thread that shows my OP/TECH strap set up with the 40mm. I don't think the combo can be beat among any brand of DSLR at the moment. As for the flash, I bought an AF 280T on ebay for $25 US and rarely use it. I am actually getting into reflectors instead of flash and purchased two of them along with my Ezybalance card. I used a white bed sheet to take my kids Christmas picture this year and got fantastic results. The two reflectors should enable me to get similar results on location as well, and the nice thing is they fold up into sizes smaller than 12 inches. There are some cool videos that demonstrate this in action on the Lastolite School of Photography which you can Google for. So my advice is to wait on the flash unless you get a cheap one to practice with. My brother has a Yongnuo for his K-5 but he rarely uses his either.
Summary: If you need a flash, get a cheap one. I recommend looking into reflectors as a possible alternative. As for lenses, the 40mm is nice for small size, though this might not be a priority for you.
If these lenses are all brand new to you, the best advice I can give is to use your zooms and see what focal lengths you use the most before buying any primes. I spent a year doing this and found that the 15/21mm, 40/43mm, and 70mm would fit almost all of my needs. The only other major things I identified were to buy a battery grip and a modular camera strap system. Good luck and feel free to PM me if you want to discuss some ideas in detail. I used to moderate a different forum and I prefer to take in-depth conversations to PMs. I'll be sure to follow up on the 40mm once it arrives.
[edit]
Here are my first impressions:
https://www.pentaxforums.com/forums/pentax-dslr-discussion/169930-first-image...sa-straps.html